Jegdić, Bore

Link to this page

Authority KeyName Variants
orcid::0000-0002-3287-3653
  • Jegdić, Bore (11)
Projects

Author's Bibliography

Metoda i program PATS za detekciju oblasti izražene turbulencije kod prirodne konvekcije

Linić, Suzana; Linić, Mihajlo; Radojković, Bojana; Jegdić, Bore; Lučanin, Vojkan

(2023)


                                            

                                            
Linić, S., Linić, M., Radojković, B., Jegdić, B.,& Lučanin, V.. (2023). Metoda i program PATS za detekciju oblasti izražene turbulencije kod prirodne konvekcije. in Tehničko rešenje.
https://hdl.handle.net/21.15107/rcub_machinery_7228
Linić S, Linić M, Radojković B, Jegdić B, Lučanin V. Metoda i program PATS za detekciju oblasti izražene turbulencije kod prirodne konvekcije. in Tehničko rešenje. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7228 .
Linić, Suzana, Linić, Mihajlo, Radojković, Bojana, Jegdić, Bore, Lučanin, Vojkan, "Metoda i program PATS za detekciju oblasti izražene turbulencije kod prirodne konvekcije" in Tehničko rešenje (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7228 .

Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution

Marunkić, Dunja; Pejić, Jovanka; Jegdić, Bore; Linić, Suzana; Perišić, Jasmina; Radojković, Bojana; Marinković, Aleksandar

(Electrochemical Soc Inc, Pennington, 2021)

TY  - JOUR
AU  - Marunkić, Dunja
AU  - Pejić, Jovanka
AU  - Jegdić, Bore
AU  - Linić, Suzana
AU  - Perišić, Jasmina
AU  - Radojković, Bojana
AU  - Marinković, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3476
AB  - The corrosion behavior of AA7049 aluminum alloy in NaCl solution in the presence of environmentally-friendly corrosion inhibitors (Ce-chloride, Ce-formate, Ce-acetate, and Ce-propionate) was analyzed. The chemical composition of intermetallic particles was evaluated by a Scanning Electron Microscope, equipped for Energy Dispersive Spectroscopy measurements, while the presence of cerium and type of functional groups in inhibitors surface layers were analyzed by X-ray Photoelectron Spectroscopy and Fourier-Transform Infrared Spectroscopy, respectively. Inhibitor efficiencies were tested by applying electrochemical techniques such as Electrochemical Impedance Spectroscopy and Linear Sweep Voltammetry. Ce-propionate showed a greater inhibitory effect than all other tested corrosion inhibitors. The inhibitory effect decreases in the following order: Ce-propionate > Ce-acetate > Ce-formate > Ce-chloride. Propionate anions have a higher water contact angle and also a longer aliphatic side chain than acetate and formate anions. The mechanism of inhibitory action of Ce-propionate and other tested corrosion inhibitors has been proposed.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of The Electrochemical Society
T1  - Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution
IS  - 8
VL  - 168
DO  - 10.1149/1945-7111/ac1895
ER  - 
@article{
author = "Marunkić, Dunja and Pejić, Jovanka and Jegdić, Bore and Linić, Suzana and Perišić, Jasmina and Radojković, Bojana and Marinković, Aleksandar",
year = "2021",
abstract = "The corrosion behavior of AA7049 aluminum alloy in NaCl solution in the presence of environmentally-friendly corrosion inhibitors (Ce-chloride, Ce-formate, Ce-acetate, and Ce-propionate) was analyzed. The chemical composition of intermetallic particles was evaluated by a Scanning Electron Microscope, equipped for Energy Dispersive Spectroscopy measurements, while the presence of cerium and type of functional groups in inhibitors surface layers were analyzed by X-ray Photoelectron Spectroscopy and Fourier-Transform Infrared Spectroscopy, respectively. Inhibitor efficiencies were tested by applying electrochemical techniques such as Electrochemical Impedance Spectroscopy and Linear Sweep Voltammetry. Ce-propionate showed a greater inhibitory effect than all other tested corrosion inhibitors. The inhibitory effect decreases in the following order: Ce-propionate > Ce-acetate > Ce-formate > Ce-chloride. Propionate anions have a higher water contact angle and also a longer aliphatic side chain than acetate and formate anions. The mechanism of inhibitory action of Ce-propionate and other tested corrosion inhibitors has been proposed.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of The Electrochemical Society",
title = "Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution",
number = "8",
volume = "168",
doi = "10.1149/1945-7111/ac1895"
}
Marunkić, D., Pejić, J., Jegdić, B., Linić, S., Perišić, J., Radojković, B.,& Marinković, A.. (2021). Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution. in Journal of The Electrochemical Society
Electrochemical Soc Inc, Pennington., 168(8).
https://doi.org/10.1149/1945-7111/ac1895
Marunkić D, Pejić J, Jegdić B, Linić S, Perišić J, Radojković B, Marinković A. Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution. in Journal of The Electrochemical Society. 2021;168(8).
doi:10.1149/1945-7111/ac1895 .
Marunkić, Dunja, Pejić, Jovanka, Jegdić, Bore, Linić, Suzana, Perišić, Jasmina, Radojković, Bojana, Marinković, Aleksandar, "Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution" in Journal of The Electrochemical Society, 168, no. 8 (2021),
https://doi.org/10.1149/1945-7111/ac1895 . .
11
8

Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill

Linić, Suzana; Linić, Mihajlo S.; Radojković, Bojana M.; Ristić, Slavica S.; Jegdić, Bore

(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2021)

TY  - JOUR
AU  - Linić, Suzana
AU  - Linić, Mihajlo S.
AU  - Radojković, Bojana M.
AU  - Ristić, Slavica S.
AU  - Jegdić, Bore
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3560
AB  - This paper presents a study of a free convection flow around the walls of a ventilation mill of the Thermal Power Plant "Kostolac B", Kostolac, Serbia. A combined method consists of thermography and software post-processing, PATS. The PATS is specially developed for recognition of turbulence zones by the custom processing of large input data sets from thermal videos. The calculations determine maximum temperature fluctuation i.e. peak-to-peak fluctuation at every spot during the recording time. Three thermal videos of the walls were analyzed. Maximum temperature fluctuation occurred in the zones close to the obstacles, which are thus recognized as one of the main sources of turbulence. Besides, PATS has recognized fine camera oscillations and mechanical movements of a flexible material near the dozer wall. The detected zones of turbulence correspond to the previous studies and to the theory. The method shows good potential in the field of free convective flow research through the improvement of testing efficiency and cost savings. State-of-the-art thermograph cameras and updated software are recommended.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill
EP  - 2458
IS  - 4
SP  - 2447
VL  - 25
DO  - 10.2298/TSCI200907341L
ER  - 
@article{
author = "Linić, Suzana and Linić, Mihajlo S. and Radojković, Bojana M. and Ristić, Slavica S. and Jegdić, Bore",
year = "2021",
abstract = "This paper presents a study of a free convection flow around the walls of a ventilation mill of the Thermal Power Plant "Kostolac B", Kostolac, Serbia. A combined method consists of thermography and software post-processing, PATS. The PATS is specially developed for recognition of turbulence zones by the custom processing of large input data sets from thermal videos. The calculations determine maximum temperature fluctuation i.e. peak-to-peak fluctuation at every spot during the recording time. Three thermal videos of the walls were analyzed. Maximum temperature fluctuation occurred in the zones close to the obstacles, which are thus recognized as one of the main sources of turbulence. Besides, PATS has recognized fine camera oscillations and mechanical movements of a flexible material near the dozer wall. The detected zones of turbulence correspond to the previous studies and to the theory. The method shows good potential in the field of free convective flow research through the improvement of testing efficiency and cost savings. State-of-the-art thermograph cameras and updated software are recommended.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill",
pages = "2458-2447",
number = "4",
volume = "25",
doi = "10.2298/TSCI200907341L"
}
Linić, S., Linić, M. S., Radojković, B. M., Ristić, S. S.,& Jegdić, B.. (2021). Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 25(4), 2447-2458.
https://doi.org/10.2298/TSCI200907341L
Linić S, Linić MS, Radojković BM, Ristić SS, Jegdić B. Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill. in Thermal Science. 2021;25(4):2447-2458.
doi:10.2298/TSCI200907341L .
Linić, Suzana, Linić, Mihajlo S., Radojković, Bojana M., Ristić, Slavica S., Jegdić, Bore, "Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill" in Thermal Science, 25, no. 4 (2021):2447-2458,
https://doi.org/10.2298/TSCI200907341L . .

Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor

Jegdić, Bore; Bobić, Biljana; Linić, Suzana

(Wiley-V C H Verlag Gmbh, Weinheim, 2020)

TY  - JOUR
AU  - Jegdić, Bore
AU  - Bobić, Biljana
AU  - Linić, Suzana
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3404
AB  - The paper analyses the corrosion behaviour of naturally and artificially aged AA2024 alloy in NaCl solution and in the presence of an environment-friendly corrosion inhibitor, CeCl3. On the basis of the values of polarisation resistance and corrosion current density, the corrosion resistance of the protective inhibitor film is established as well as the general corrosion resistance of this aluminium alloy. Resistance to pit formation is determined based on the difference in pitting and corrosion potentials while resistance to pit growth is determined based on the amount of charge consumed during pit growth. A scanning electron microscope is used to examine the morphology of the pits formed during the pitting corrosion testing, as well as to determine the cerium content on intermetallic particles and the matrix AA2024 alloy. The corrosion behaviour of AA2024 alloy is investigated after different test periods in NaCl solution and in the same solution with the CeCl3 inhibitor. The corrosion resistance of both tempers of AA2024 alloy is more than one order of magnitude higher in the presence of CeCl3. An explanation of the observed differences in the corrosion behaviour of the naturally and artificially aged AA2024 alloy is proposed. Different corrosion behaviour of the alloy after different test periods is also explained.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Materials and Corrosion-Werkstoffe Und Korrosion
T1  - Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor
EP  - 364
IS  - 3
SP  - 352
VL  - 71
DO  - 10.1002/maco.201911219
ER  - 
@article{
author = "Jegdić, Bore and Bobić, Biljana and Linić, Suzana",
year = "2020",
abstract = "The paper analyses the corrosion behaviour of naturally and artificially aged AA2024 alloy in NaCl solution and in the presence of an environment-friendly corrosion inhibitor, CeCl3. On the basis of the values of polarisation resistance and corrosion current density, the corrosion resistance of the protective inhibitor film is established as well as the general corrosion resistance of this aluminium alloy. Resistance to pit formation is determined based on the difference in pitting and corrosion potentials while resistance to pit growth is determined based on the amount of charge consumed during pit growth. A scanning electron microscope is used to examine the morphology of the pits formed during the pitting corrosion testing, as well as to determine the cerium content on intermetallic particles and the matrix AA2024 alloy. The corrosion behaviour of AA2024 alloy is investigated after different test periods in NaCl solution and in the same solution with the CeCl3 inhibitor. The corrosion resistance of both tempers of AA2024 alloy is more than one order of magnitude higher in the presence of CeCl3. An explanation of the observed differences in the corrosion behaviour of the naturally and artificially aged AA2024 alloy is proposed. Different corrosion behaviour of the alloy after different test periods is also explained.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Materials and Corrosion-Werkstoffe Und Korrosion",
title = "Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor",
pages = "364-352",
number = "3",
volume = "71",
doi = "10.1002/maco.201911219"
}
Jegdić, B., Bobić, B.,& Linić, S.. (2020). Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor. in Materials and Corrosion-Werkstoffe Und Korrosion
Wiley-V C H Verlag Gmbh, Weinheim., 71(3), 352-364.
https://doi.org/10.1002/maco.201911219
Jegdić B, Bobić B, Linić S. Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor. in Materials and Corrosion-Werkstoffe Und Korrosion. 2020;71(3):352-364.
doi:10.1002/maco.201911219 .
Jegdić, Bore, Bobić, Biljana, Linić, Suzana, "Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor" in Materials and Corrosion-Werkstoffe Und Korrosion, 71, no. 3 (2020):352-364,
https://doi.org/10.1002/maco.201911219 . .
11
5
11

Corrosion and Cavitation resistance of P/T91 Steel

Milović, Ljubica; Dojčinović, Marina; Jegdić, Bore; Anđelić, Nina; Milošević-Mitić, Vesna

(2019)

TY  - CONF
AU  - Milović, Ljubica
AU  - Dojčinović, Marina
AU  - Jegdić, Bore
AU  - Anđelić, Nina
AU  - Milošević-Mitić, Vesna
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5982
AB  - The electrochemical behaviour of the P/T91 steel with martensitic microstructure as well as its behaviour 
in cavitation conditions has been investigated in this study. The electrochemical techniques used to 
analyze corrosion behaviour include Linear Polarization Resistance (LPR), Electrochemical Impedance 
Spectroscopy (EIS) and Linear Sweep Voltammetry (LSV). Corrosion rate determination was performed 
in a solution that simulates the industrial atmosphere. In laboratory conditions, ultrasonic vibratory 
cavitation test set up (stationary specimen method) has been applied on specimens made of P/T91 steel. 
Scanning electron microscopy technique has been applied to analyze the morphology of the eroded 
surfaces and to interpret the results of the cavitation tests. Test results have shown that, from the point of 
view of corrosion, P/T91 steel has a favourable chemical composition but the unfavourable lamellar martensite microstructure. Also, the morphology of surface damage from cavitation of P/T91 steel 
resembles the features of the fatigue failure. In order to evaluate the resistance to cavitation of 
investigated material, its cavitation rate was compared with those of some other martensitic steels used in 
fabrication of various industrial components for application in thermal power plants.
C3  - Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia
T1  - Corrosion and Cavitation resistance of P/T91 Steel
SP  - 187
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5982
ER  - 
@conference{
author = "Milović, Ljubica and Dojčinović, Marina and Jegdić, Bore and Anđelić, Nina and Milošević-Mitić, Vesna",
year = "2019",
abstract = "The electrochemical behaviour of the P/T91 steel with martensitic microstructure as well as its behaviour 
in cavitation conditions has been investigated in this study. The electrochemical techniques used to 
analyze corrosion behaviour include Linear Polarization Resistance (LPR), Electrochemical Impedance 
Spectroscopy (EIS) and Linear Sweep Voltammetry (LSV). Corrosion rate determination was performed 
in a solution that simulates the industrial atmosphere. In laboratory conditions, ultrasonic vibratory 
cavitation test set up (stationary specimen method) has been applied on specimens made of P/T91 steel. 
Scanning electron microscopy technique has been applied to analyze the morphology of the eroded 
surfaces and to interpret the results of the cavitation tests. Test results have shown that, from the point of 
view of corrosion, P/T91 steel has a favourable chemical composition but the unfavourable lamellar martensite microstructure. Also, the morphology of surface damage from cavitation of P/T91 steel 
resembles the features of the fatigue failure. In order to evaluate the resistance to cavitation of 
investigated material, its cavitation rate was compared with those of some other martensitic steels used in 
fabrication of various industrial components for application in thermal power plants.",
journal = "Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia",
title = "Corrosion and Cavitation resistance of P/T91 Steel",
pages = "187",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5982"
}
Milović, L., Dojčinović, M., Jegdić, B., Anđelić, N.,& Milošević-Mitić, V.. (2019). Corrosion and Cavitation resistance of P/T91 Steel. in Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia, 187.
https://hdl.handle.net/21.15107/rcub_machinery_5982
Milović L, Dojčinović M, Jegdić B, Anđelić N, Milošević-Mitić V. Corrosion and Cavitation resistance of P/T91 Steel. in Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia. 2019;:187.
https://hdl.handle.net/21.15107/rcub_machinery_5982 .
Milović, Ljubica, Dojčinović, Marina, Jegdić, Bore, Anđelić, Nina, Milošević-Mitić, Vesna, "Corrosion and Cavitation resistance of P/T91 Steel" in Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia (2019):187,
https://hdl.handle.net/21.15107/rcub_machinery_5982 .

Termografija u kontroli efikasnosti i bezbednosti laserskog čišćenja

Ristić, Slavica R.; Polić, Suzana; Knježević, Dragan M.; Radojković, Bojana M.; Linić, Suzana; Jegdić, Bore

(Savez inženjera i tehničara Srbije, Beograd, 2019)

TY  - JOUR
AU  - Ristić, Slavica R.
AU  - Polić, Suzana
AU  - Knježević, Dragan M.
AU  - Radojković, Bojana M.
AU  - Linić, Suzana
AU  - Jegdić, Bore
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3021
AB  - Inovativna tehnologija laserskog čišćenja različitih površina u industriji, uključuje integrisani pristup kontrole procesa interakcije laser-materijal i ispitivanja rezultata laserskog delovanja. Lasersko čišćenje ima značajne prednosti u odnosu na klasične metode čišćenja: ima veliku selektivnost, preciznost, efikasnost i pouzdanost u primeni kod različitih vrsta materijala. Termalna priroda procesa laserskog čišćenja unosi određeni rizik po predmete čišćenja, te su istraživanja optimizacije procesa u fokusu interesovanja velikog broja naučnika. U radu su prikazani rezultati laserskog čišćenja boje na bakarnoj površini i zaštitnog sloja na štampanoj pločici. Kontrola procesa laserskog čišćenja u realnom vremenu je vršena pomoću infracrvene kamere. Mikromorfološke promene čišćene površine su ispitivani optičkom mikroskopijom.
AB  - Innovative laser cleaning technology for various surfaces in the industry, includes an integrated approach to controlling the process of laser-material interaction and testing laser treatment results. Laser cleaning has significant advantages over conventional cleaning methods: it has high selectivity, precision, efficiency and reliability in an application for different types of materials. The thermal nature of the laser cleaning process brings a certain risk for cleaning objects, and the process optimization research is in the focus of interest of a large number of scientists. This paper presents the results of laser paint, on the copper surface, and the protective layer, on the printed circuit board, cleaning. The control of the real-time laser cleaning process was carried out using an infrared camera. The micromorphological characteristics of the cleaned surface were examined by optical microscopy.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Termografija u kontroli efikasnosti i bezbednosti laserskog čišćenja
T1  - Thermography in control efficiency and safety of laser cleaning
EP  - 629
IS  - 5
SP  - 623
VL  - 74
DO  - 10.5937/tehnika1905623R
ER  - 
@article{
author = "Ristić, Slavica R. and Polić, Suzana and Knježević, Dragan M. and Radojković, Bojana M. and Linić, Suzana and Jegdić, Bore",
year = "2019",
abstract = "Inovativna tehnologija laserskog čišćenja različitih površina u industriji, uključuje integrisani pristup kontrole procesa interakcije laser-materijal i ispitivanja rezultata laserskog delovanja. Lasersko čišćenje ima značajne prednosti u odnosu na klasične metode čišćenja: ima veliku selektivnost, preciznost, efikasnost i pouzdanost u primeni kod različitih vrsta materijala. Termalna priroda procesa laserskog čišćenja unosi određeni rizik po predmete čišćenja, te su istraživanja optimizacije procesa u fokusu interesovanja velikog broja naučnika. U radu su prikazani rezultati laserskog čišćenja boje na bakarnoj površini i zaštitnog sloja na štampanoj pločici. Kontrola procesa laserskog čišćenja u realnom vremenu je vršena pomoću infracrvene kamere. Mikromorfološke promene čišćene površine su ispitivani optičkom mikroskopijom., Innovative laser cleaning technology for various surfaces in the industry, includes an integrated approach to controlling the process of laser-material interaction and testing laser treatment results. Laser cleaning has significant advantages over conventional cleaning methods: it has high selectivity, precision, efficiency and reliability in an application for different types of materials. The thermal nature of the laser cleaning process brings a certain risk for cleaning objects, and the process optimization research is in the focus of interest of a large number of scientists. This paper presents the results of laser paint, on the copper surface, and the protective layer, on the printed circuit board, cleaning. The control of the real-time laser cleaning process was carried out using an infrared camera. The micromorphological characteristics of the cleaned surface were examined by optical microscopy.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Termografija u kontroli efikasnosti i bezbednosti laserskog čišćenja, Thermography in control efficiency and safety of laser cleaning",
pages = "629-623",
number = "5",
volume = "74",
doi = "10.5937/tehnika1905623R"
}
Ristić, S. R., Polić, S., Knježević, D. M., Radojković, B. M., Linić, S.,& Jegdić, B.. (2019). Termografija u kontroli efikasnosti i bezbednosti laserskog čišćenja. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 74(5), 623-629.
https://doi.org/10.5937/tehnika1905623R
Ristić SR, Polić S, Knježević DM, Radojković BM, Linić S, Jegdić B. Termografija u kontroli efikasnosti i bezbednosti laserskog čišćenja. in Tehnika. 2019;74(5):623-629.
doi:10.5937/tehnika1905623R .
Ristić, Slavica R., Polić, Suzana, Knježević, Dragan M., Radojković, Bojana M., Linić, Suzana, Jegdić, Bore, "Termografija u kontroli efikasnosti i bezbednosti laserskog čišćenja" in Tehnika, 74, no. 5 (2019):623-629,
https://doi.org/10.5937/tehnika1905623R . .
2

Istraživanje mogućnosti primene lasera u čišćenju arheoloških metalnih predmeta

Ristić, Slavica; Polić, Suzana; Radojković, Bojana; Linić, Suzana; Bikić, Vesna; Jegdić, Bore; Pavlović, Miloš

(Inženjersko društvo za koroziju, Beograd, 2018)

TY  - JOUR
AU  - Ristić, Slavica
AU  - Polić, Suzana
AU  - Radojković, Bojana
AU  - Linić, Suzana
AU  - Bikić, Vesna
AU  - Jegdić, Bore
AU  - Pavlović, Miloš
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2743
AB  - U radu su prikazani rezultati laserskog čišćenja korozivnih i drugih naslaga na metalnom arheološkom predmetu koji je nađen u Dunavu. Korišćen je Nd:YAG laser, energije do 750mJ i talasne dužine λ=1064nm i 532nm. Efikasnost čišćenja je ispitivana u funkciji energije lasera, talasne dužine, broja impulsa, odnosno vremena eksponiranja i vlažnosti površine uzorka. Rezultati skidanja nepoželjnih slojeva sa površine uzorka, kao i morfoloških promena na osnovnom materijalu, ispitivani su optičkom i skenirajućom elektronskom mikroskopijom ( OM i SEM), a ispitivanje mikrohemijskih promena izvršeno je pomoću energijske disperzione spektrometrijske analize (EDX) i rendgensko fluorescentnom spektroskopijom (XRF). Pokazano je da za čišćenje ovog uzorka veću efikasnost ima λ= 532nm i da je uticaj vlažnosti površine na efikasnost laserskog čišćenja veoma mali. Istraživanja obavljena na arheološkom uzorku iz Dunava, pokazuju da je primena lasera u čišćenju nepoželjnih slojeva veoma efikasna, bezbedna i ekološki prihvatljiva.
AB  - The paper presents the results of laser cleaning of corrosive and other deposits on a metal archaeological artefact from the Danube. Nd: YAG laser, energy up to 750 mJ and wavelengths λ = 1064 nm and 532 nm is used. The cleaning efficiency was examined in the function of laser energy, wavelength, and number of pulses, i.e. the time of exposure and moist of the surface of the sample. The results of removal of unwanted layers from the surface of the artefact and morphological changes on the base material were examined by optical and scanning electronic microscopy (OM and SEM). Micro-chemical changes have been determined by energy dispersive X-ray analysis (EDX) and x-ray fluorescence spectrometry (XRF). It has been shown that λ = 532 nm has higher efficiency for cleaning this sample and that the surface moisture has very small influence on laser cleaning efficiency. Research carried out on the archaeological object from the Danube shows that the application of lasers in the cleaning of undesirable layers is very efficient, safe and environmentally friendly.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Istraživanje mogućnosti primene lasera u čišćenju arheoloških metalnih predmeta
T1  - Laser cleaning of the archaeological metal sample from the Danube
EP  - 421
IS  - 3
SP  - 410
VL  - 59
DO  - 10.5937/zasmat1803410R
ER  - 
@article{
author = "Ristić, Slavica and Polić, Suzana and Radojković, Bojana and Linić, Suzana and Bikić, Vesna and Jegdić, Bore and Pavlović, Miloš",
year = "2018",
abstract = "U radu su prikazani rezultati laserskog čišćenja korozivnih i drugih naslaga na metalnom arheološkom predmetu koji je nađen u Dunavu. Korišćen je Nd:YAG laser, energije do 750mJ i talasne dužine λ=1064nm i 532nm. Efikasnost čišćenja je ispitivana u funkciji energije lasera, talasne dužine, broja impulsa, odnosno vremena eksponiranja i vlažnosti površine uzorka. Rezultati skidanja nepoželjnih slojeva sa površine uzorka, kao i morfoloških promena na osnovnom materijalu, ispitivani su optičkom i skenirajućom elektronskom mikroskopijom ( OM i SEM), a ispitivanje mikrohemijskih promena izvršeno je pomoću energijske disperzione spektrometrijske analize (EDX) i rendgensko fluorescentnom spektroskopijom (XRF). Pokazano je da za čišćenje ovog uzorka veću efikasnost ima λ= 532nm i da je uticaj vlažnosti površine na efikasnost laserskog čišćenja veoma mali. Istraživanja obavljena na arheološkom uzorku iz Dunava, pokazuju da je primena lasera u čišćenju nepoželjnih slojeva veoma efikasna, bezbedna i ekološki prihvatljiva., The paper presents the results of laser cleaning of corrosive and other deposits on a metal archaeological artefact from the Danube. Nd: YAG laser, energy up to 750 mJ and wavelengths λ = 1064 nm and 532 nm is used. The cleaning efficiency was examined in the function of laser energy, wavelength, and number of pulses, i.e. the time of exposure and moist of the surface of the sample. The results of removal of unwanted layers from the surface of the artefact and morphological changes on the base material were examined by optical and scanning electronic microscopy (OM and SEM). Micro-chemical changes have been determined by energy dispersive X-ray analysis (EDX) and x-ray fluorescence spectrometry (XRF). It has been shown that λ = 532 nm has higher efficiency for cleaning this sample and that the surface moisture has very small influence on laser cleaning efficiency. Research carried out on the archaeological object from the Danube shows that the application of lasers in the cleaning of undesirable layers is very efficient, safe and environmentally friendly.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Istraživanje mogućnosti primene lasera u čišćenju arheoloških metalnih predmeta, Laser cleaning of the archaeological metal sample from the Danube",
pages = "421-410",
number = "3",
volume = "59",
doi = "10.5937/zasmat1803410R"
}
Ristić, S., Polić, S., Radojković, B., Linić, S., Bikić, V., Jegdić, B.,& Pavlović, M.. (2018). Istraživanje mogućnosti primene lasera u čišćenju arheoloških metalnih predmeta. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 59(3), 410-421.
https://doi.org/10.5937/zasmat1803410R
Ristić S, Polić S, Radojković B, Linić S, Bikić V, Jegdić B, Pavlović M. Istraživanje mogućnosti primene lasera u čišćenju arheoloških metalnih predmeta. in Zaštita materijala. 2018;59(3):410-421.
doi:10.5937/zasmat1803410R .
Ristić, Slavica, Polić, Suzana, Radojković, Bojana, Linić, Suzana, Bikić, Vesna, Jegdić, Bore, Pavlović, Miloš, "Istraživanje mogućnosti primene lasera u čišćenju arheoloških metalnih predmeta" in Zaštita materijala, 59, no. 3 (2018):410-421,
https://doi.org/10.5937/zasmat1803410R . .
1

Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test

Linić, Suzana; Ocokoljić, Goran; Ristić, Slavica S.; Lučanin, Vojkan; Kozić, Mirko; Rašuo, Boško; Jegdić, Bore

(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2018)

TY  - JOUR
AU  - Linić, Suzana
AU  - Ocokoljić, Goran
AU  - Ristić, Slavica S.
AU  - Lučanin, Vojkan
AU  - Kozić, Mirko
AU  - Rašuo, Boško
AU  - Jegdić, Bore
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2792
AB  - Methods of diagnosing aerodynamic characteristics are constantly developing in order to conduct the precise and energy efficient wind tunnel testing of transport vehicles in the prototype design early stages. This is of a special importance when facing the time/cost consumption problems of detection of the transition zone over the simplified design of the high-speed train. Herein the applied thermodynamics found a very significant role in the field of experimental aerodynamics. With the intention of detecting the boundary-layer transition zone the following measurements were applied: the infrared thermography, flow visualization, and drag force measurements. In addition, the CFD was applied to predict the flow behaviour and transition zone, solving PDE consisting of the Reynolds-averaged Navier-Stokes equations, energy equation, and the equation of state for an ideal gas employing density-based solver. The thermal imaging defined the transition zone by simple application, and fast recognition, while the transition bounds were defined in the analysis. The flow visualization confirmed thermography results and the method itself as favourable, especially in the most expensive early phases of redesigning for aerodynamically optimized and energy efficient solutions. The numerical method was confirmed by the experiments, resulting in acceptable differences in the definition of the transition zone. For a better understanding of the phenomenon, the overlapped implementation of the presented methods focused on forced convection showed as the best solution. Based on the experiences of this research, development of the additional equipment and adjustments will be introduced in the future experiments.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test
EP  - 1148
IS  - 2
SP  - 1137
VL  - 22
DO  - 10.2298/TSCI170619302L
ER  - 
@article{
author = "Linić, Suzana and Ocokoljić, Goran and Ristić, Slavica S. and Lučanin, Vojkan and Kozić, Mirko and Rašuo, Boško and Jegdić, Bore",
year = "2018",
abstract = "Methods of diagnosing aerodynamic characteristics are constantly developing in order to conduct the precise and energy efficient wind tunnel testing of transport vehicles in the prototype design early stages. This is of a special importance when facing the time/cost consumption problems of detection of the transition zone over the simplified design of the high-speed train. Herein the applied thermodynamics found a very significant role in the field of experimental aerodynamics. With the intention of detecting the boundary-layer transition zone the following measurements were applied: the infrared thermography, flow visualization, and drag force measurements. In addition, the CFD was applied to predict the flow behaviour and transition zone, solving PDE consisting of the Reynolds-averaged Navier-Stokes equations, energy equation, and the equation of state for an ideal gas employing density-based solver. The thermal imaging defined the transition zone by simple application, and fast recognition, while the transition bounds were defined in the analysis. The flow visualization confirmed thermography results and the method itself as favourable, especially in the most expensive early phases of redesigning for aerodynamically optimized and energy efficient solutions. The numerical method was confirmed by the experiments, resulting in acceptable differences in the definition of the transition zone. For a better understanding of the phenomenon, the overlapped implementation of the presented methods focused on forced convection showed as the best solution. Based on the experiences of this research, development of the additional equipment and adjustments will be introduced in the future experiments.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test",
pages = "1148-1137",
number = "2",
volume = "22",
doi = "10.2298/TSCI170619302L"
}
Linić, S., Ocokoljić, G., Ristić, S. S., Lučanin, V., Kozić, M., Rašuo, B.,& Jegdić, B.. (2018). Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 22(2), 1137-1148.
https://doi.org/10.2298/TSCI170619302L
Linić S, Ocokoljić G, Ristić SS, Lučanin V, Kozić M, Rašuo B, Jegdić B. Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test. in Thermal Science. 2018;22(2):1137-1148.
doi:10.2298/TSCI170619302L .
Linić, Suzana, Ocokoljić, Goran, Ristić, Slavica S., Lučanin, Vojkan, Kozić, Mirko, Rašuo, Boško, Jegdić, Bore, "Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test" in Thermal Science, 22, no. 2 (2018):1137-1148,
https://doi.org/10.2298/TSCI170619302L . .
8
7
11

Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation

Kozić, Mirko; Ristić, Slavica; Katavić, Boris; Jegdić, Bore; Prvulović, Mirjana; Prokolab, Milan; Linić, Suzana

(Institut za ispitivanje materijala, Beograd, 2017)

TY  - JOUR
AU  - Kozić, Mirko
AU  - Ristić, Slavica
AU  - Katavić, Boris
AU  - Jegdić, Bore
AU  - Prvulović, Mirjana
AU  - Prokolab, Milan
AU  - Linić, Suzana
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2646
AB  - Numerical simulation of 3D multiphase flow is performed to determine the velocity field in the fan mill. The mixture model of the Euler-Euler approach is used. Recirculating gas is a primary phase that carries granular phases including the coal powder and sand. The latter causes heavy wear of mill impact plates. The optimal form of hardfacing geometry and technology has an impact both on velocity magnitude and direction of flow in such a way as to reduce plate wear. This paper presents results of surface modification (based on numerical simulation), implemented on impact plates of the fan mill in the Kostolac B power plant in Serbia. Fishbone hardfacing is made in order to increase the lifetime of impact plates and extend the period between overhauls of fan mills. The experimental tests of fishbone surfacing plates, in exploitation conditions, show that the applied modification, hardfacing technologies and coating materials, give expected results. The application of this hardfacing in the form of a fishbone is simpler, faster and more economical compared to complete overlaying and honeycomb impact plate surfacing. The relative weight loss of base plate after an 1440-hour period of exploitation is 8%, while the weight losses for the hard-faced plate is below 7%.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life-Integritet I Vek Konstrukcija
T1  - Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation
EP  - 228
IS  - 3
SP  - 221
VL  - 17
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2646
ER  - 
@article{
author = "Kozić, Mirko and Ristić, Slavica and Katavić, Boris and Jegdić, Bore and Prvulović, Mirjana and Prokolab, Milan and Linić, Suzana",
year = "2017",
abstract = "Numerical simulation of 3D multiphase flow is performed to determine the velocity field in the fan mill. The mixture model of the Euler-Euler approach is used. Recirculating gas is a primary phase that carries granular phases including the coal powder and sand. The latter causes heavy wear of mill impact plates. The optimal form of hardfacing geometry and technology has an impact both on velocity magnitude and direction of flow in such a way as to reduce plate wear. This paper presents results of surface modification (based on numerical simulation), implemented on impact plates of the fan mill in the Kostolac B power plant in Serbia. Fishbone hardfacing is made in order to increase the lifetime of impact plates and extend the period between overhauls of fan mills. The experimental tests of fishbone surfacing plates, in exploitation conditions, show that the applied modification, hardfacing technologies and coating materials, give expected results. The application of this hardfacing in the form of a fishbone is simpler, faster and more economical compared to complete overlaying and honeycomb impact plate surfacing. The relative weight loss of base plate after an 1440-hour period of exploitation is 8%, while the weight losses for the hard-faced plate is below 7%.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life-Integritet I Vek Konstrukcija",
title = "Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation",
pages = "228-221",
number = "3",
volume = "17",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2646"
}
Kozić, M., Ristić, S., Katavić, B., Jegdić, B., Prvulović, M., Prokolab, M.,& Linić, S.. (2017). Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation. in Structural Integrity and Life-Integritet I Vek Konstrukcija
Institut za ispitivanje materijala, Beograd., 17(3), 221-228.
https://hdl.handle.net/21.15107/rcub_machinery_2646
Kozić M, Ristić S, Katavić B, Jegdić B, Prvulović M, Prokolab M, Linić S. Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation. in Structural Integrity and Life-Integritet I Vek Konstrukcija. 2017;17(3):221-228.
https://hdl.handle.net/21.15107/rcub_machinery_2646 .
Kozić, Mirko, Ristić, Slavica, Katavić, Boris, Jegdić, Bore, Prvulović, Mirjana, Prokolab, Milan, Linić, Suzana, "Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation" in Structural Integrity and Life-Integritet I Vek Konstrukcija, 17, no. 3 (2017):221-228,
https://hdl.handle.net/21.15107/rcub_machinery_2646 .

Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka

Bobić, Biljana; Vencl, Aleksandar; Babić, Miroslav; Ružić, Jovana; Jegdić, Bore; Bobić, Ilija

(2016)

TY  - GEN
AU  - Bobić, Biljana
AU  - Vencl, Aleksandar
AU  - Babić, Miroslav
AU  - Ružić, Jovana
AU  - Jegdić, Bore
AU  - Bobić, Ilija
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4357
T1  - Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4357
ER  - 
@misc{
author = "Bobić, Biljana and Vencl, Aleksandar and Babić, Miroslav and Ružić, Jovana and Jegdić, Bore and Bobić, Ilija",
year = "2016",
title = "Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4357"
}
Bobić, B., Vencl, A., Babić, M., Ružić, J., Jegdić, B.,& Bobić, I.. (2016). Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka. .
https://hdl.handle.net/21.15107/rcub_machinery_4357
Bobić B, Vencl A, Babić M, Ružić J, Jegdić B, Bobić I. Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka. 2016;.
https://hdl.handle.net/21.15107/rcub_machinery_4357 .
Bobić, Biljana, Vencl, Aleksandar, Babić, Miroslav, Ružić, Jovana, Jegdić, Bore, Bobić, Ilija, "Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka" (2016),
https://hdl.handle.net/21.15107/rcub_machinery_4357 .

Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu

Jegdić, Bore; Bobić, Biljana; Panić, Vladimir; Vencl, Aleksandar; Stevanović, Jasmina; Bobić, Ilija

(2016)

TY  - GEN
AU  - Jegdić, Bore
AU  - Bobić, Biljana
AU  - Panić, Vladimir
AU  - Vencl, Aleksandar
AU  - Stevanović, Jasmina
AU  - Bobić, Ilija
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4358
T1  - Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4358
ER  - 
@misc{
author = "Jegdić, Bore and Bobić, Biljana and Panić, Vladimir and Vencl, Aleksandar and Stevanović, Jasmina and Bobić, Ilija",
year = "2016",
title = "Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4358"
}
Jegdić, B., Bobić, B., Panić, V., Vencl, A., Stevanović, J.,& Bobić, I.. (2016). Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu. .
https://hdl.handle.net/21.15107/rcub_machinery_4358
Jegdić B, Bobić B, Panić V, Vencl A, Stevanović J, Bobić I. Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu. 2016;.
https://hdl.handle.net/21.15107/rcub_machinery_4358 .
Jegdić, Bore, Bobić, Biljana, Panić, Vladimir, Vencl, Aleksandar, Stevanović, Jasmina, Bobić, Ilija, "Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu" (2016),
https://hdl.handle.net/21.15107/rcub_machinery_4358 .