TY  - CONF
AU  - Todorović, Ivan
AU  - Jovanović, Milan
AU  - Krivokapić, Jovan
AU  - Milković, Dragan
AU  - Lučanin, Vojkan
AU  - Tanasković, Jovan
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7774
AB  - Digital transformation of business activities has outgrown from
competitive advantage to necessity in recent years. Evolution of
information and communication technologies (ICT) has created
the world where electronic business (E-Business), document
management systems (DMS) and enterprise resource planning
(ERP) solutions have become standard, even for micro, small
and medium enterprises (MSME) in developing countries.
Modern businesses focus on implementing data analysis,
business intelligence (BI) and even artificial intelligence (AI)
concepts in their everyday activities, thus the digitalization of
business activities is simply considered as default. Nevertheless,
public companies in developing countries fall behind and
struggle in this transformation process, as usual. Due to various
reasons, they are still in the phase of digitalization, rather than
implementing advanced solutions. Any organizational change
demands unfreezing and mindset redirection, among both
management and executors, which is always challenging,
especially in the public sector. This paper aims to explain the
preconditions and benefits of digital transition of the train
maintenance process, and key challenges in such transformation.
PB  - University of Maribor
C3  - 43 rd International Conference on Organizational Science Development Green and Digital Transition – Challenge or Opportunity
T1  - Digital Transition of the Maintenance Process: Case of Rail Transport Company
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7774
ER  - 

@conference{
author = "Todorović, Ivan and Jovanović, Milan and Krivokapić, Jovan and Milković, Dragan and Lučanin, Vojkan and Tanasković, Jovan",
year = "2024",
abstract = "Digital transformation of business activities has outgrown from
competitive advantage to necessity in recent years. Evolution of
information and communication technologies (ICT) has created
the world where electronic business (E-Business), document
management systems (DMS) and enterprise resource planning
(ERP) solutions have become standard, even for micro, small
and medium enterprises (MSME) in developing countries.
Modern businesses focus on implementing data analysis,
business intelligence (BI) and even artificial intelligence (AI)
concepts in their everyday activities, thus the digitalization of
business activities is simply considered as default. Nevertheless,
public companies in developing countries fall behind and
struggle in this transformation process, as usual. Due to various
reasons, they are still in the phase of digitalization, rather than
implementing advanced solutions. Any organizational change
demands unfreezing and mindset redirection, among both
management and executors, which is always challenging,
especially in the public sector. This paper aims to explain the
preconditions and benefits of digital transition of the train
maintenance process, and key challenges in such transformation.",
publisher = "University of Maribor",
journal = "43 rd International Conference on Organizational Science Development Green and Digital Transition – Challenge or Opportunity",
title = "Digital Transition of the Maintenance Process: Case of Rail Transport Company",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7774"
}

Todorović, I., Jovanović, M., Krivokapić, J., Milković, D., Lučanin, V.,& Tanasković, J.. (2024). Digital Transition of the Maintenance Process: Case of Rail Transport Company. in 43 rd International Conference on Organizational Science Development Green and Digital Transition – Challenge or Opportunity
University of Maribor..
https://hdl.handle.net/21.15107/rcub_machinery_7774

Todorović I, Jovanović M, Krivokapić J, Milković D, Lučanin V, Tanasković J. Digital Transition of the Maintenance Process: Case of Rail Transport Company. in 43 rd International Conference on Organizational Science Development Green and Digital Transition – Challenge or Opportunity. 2024;.
https://hdl.handle.net/21.15107/rcub_machinery_7774 .

Todorović, Ivan, Jovanović, Milan, Krivokapić, Jovan, Milković, Dragan, Lučanin, Vojkan, Tanasković, Jovan, "Digital Transition of the Maintenance Process: Case of Rail Transport Company" in 43 rd International Conference on Organizational Science Development Green and Digital Transition – Challenge or Opportunity (2024),
https://hdl.handle.net/21.15107/rcub_machinery_7774 .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Rajković, Viseslava
AU  - Zivić, Fatima
AU  - Mitrović, Slobodan
AU  - Cvijović-Alagić, Ivana
AU  - Jovanović, Milan T.
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1711
AB  - Three copper-based alloys, i.e. two composites reinforced with Al2O3 particles and fabricated through PM route and Cu-Cr-Zr alloy processed by the vacuum melting and casting technique were the object of this investigation. Light microscope, scanning electron microscope (SEM) equipped with electron X-ray spectrometer (EDS) and transmission electron microscope (TEM) were used for microstructural characterization. The ball-on-disc nanotribometer served for wear and friction tests applying low sliding speeds (6, 8 and 10 mm/s) at constant load (1 N). The objective of the paper was to investigate the effect of different processing techniques on microstructure, thermal stability and the tribological characteristics of composites and copper ingot alloy. Nano-sized Al2O3 particles (less than 100 nm in size) are present not only in the copper matrix of Cu-2.5 wt.% Al composite, obtained by internal oxidation, but they are also formed at the grain boundaries preventing the grain growth and providing very small grain size. During the high temperature annealing (in the range 300-950 degrees C) composites behaved much better than the ingot alloy. The highest thermal stability showed Cu-2.5 wt.% Al composite. The pinning effect of nano-sized Al2O3 particles prevents the grain growth slowing down recrystallization of this composite up to 900 degrees C. Micro-sized Al2O3 particles in Cu-5 wt.% Al2O3 composite, processed by mechanical annealing, are not effective in preventing dislocation motion and the grain growth, whereas microstructure of Cu-0.4 wt.% Cr-0.08 wt.% Zr ingot alloy was completely recrystallized around 550 degrees C. Cu-2.5 wt.% Al composite showed the best wear resistance, approximately 2.5 times higher than that of Cu-5 wt.% Al2O3 composite. High hardness and nano-sized Al2O3 particles size combined with the fine-grain structure are the main parameters leading to the improved wear resistance of the Cu-2.5Al composite.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Surface Science
T1  - The effect of processing techniques on microstructural and tribological properties of copper-based alloys
EP  - 654
SP  - 646
VL  - 280
DO  - 10.1016/j.apsusc.2013.05.039
ER  - 

@article{
author = "Vencl, Aleksandar and Rajković, Viseslava and Zivić, Fatima and Mitrović, Slobodan and Cvijović-Alagić, Ivana and Jovanović, Milan T.",
year = "2013",
abstract = "Three copper-based alloys, i.e. two composites reinforced with Al2O3 particles and fabricated through PM route and Cu-Cr-Zr alloy processed by the vacuum melting and casting technique were the object of this investigation. Light microscope, scanning electron microscope (SEM) equipped with electron X-ray spectrometer (EDS) and transmission electron microscope (TEM) were used for microstructural characterization. The ball-on-disc nanotribometer served for wear and friction tests applying low sliding speeds (6, 8 and 10 mm/s) at constant load (1 N). The objective of the paper was to investigate the effect of different processing techniques on microstructure, thermal stability and the tribological characteristics of composites and copper ingot alloy. Nano-sized Al2O3 particles (less than 100 nm in size) are present not only in the copper matrix of Cu-2.5 wt.% Al composite, obtained by internal oxidation, but they are also formed at the grain boundaries preventing the grain growth and providing very small grain size. During the high temperature annealing (in the range 300-950 degrees C) composites behaved much better than the ingot alloy. The highest thermal stability showed Cu-2.5 wt.% Al composite. The pinning effect of nano-sized Al2O3 particles prevents the grain growth slowing down recrystallization of this composite up to 900 degrees C. Micro-sized Al2O3 particles in Cu-5 wt.% Al2O3 composite, processed by mechanical annealing, are not effective in preventing dislocation motion and the grain growth, whereas microstructure of Cu-0.4 wt.% Cr-0.08 wt.% Zr ingot alloy was completely recrystallized around 550 degrees C. Cu-2.5 wt.% Al composite showed the best wear resistance, approximately 2.5 times higher than that of Cu-5 wt.% Al2O3 composite. High hardness and nano-sized Al2O3 particles size combined with the fine-grain structure are the main parameters leading to the improved wear resistance of the Cu-2.5Al composite.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Surface Science",
title = "The effect of processing techniques on microstructural and tribological properties of copper-based alloys",
pages = "654-646",
volume = "280",
doi = "10.1016/j.apsusc.2013.05.039"
}

Vencl, A., Rajković, V., Zivić, F., Mitrović, S., Cvijović-Alagić, I.,& Jovanović, M. T.. (2013). The effect of processing techniques on microstructural and tribological properties of copper-based alloys. in Applied Surface Science
Elsevier Science Bv, Amsterdam., 280, 646-654.
https://doi.org/10.1016/j.apsusc.2013.05.039

Vencl A, Rajković V, Zivić F, Mitrović S, Cvijović-Alagić I, Jovanović MT. The effect of processing techniques on microstructural and tribological properties of copper-based alloys. in Applied Surface Science. 2013;280:646-654.
doi:10.1016/j.apsusc.2013.05.039 .

Vencl, Aleksandar, Rajković, Viseslava, Zivić, Fatima, Mitrović, Slobodan, Cvijović-Alagić, Ivana, Jovanović, Milan T., "The effect of processing techniques on microstructural and tribological properties of copper-based alloys" in Applied Surface Science, 280 (2013):646-654,
https://doi.org/10.1016/j.apsusc.2013.05.039 . .

TY  - JOUR
AU  - Erić, Olivera
AU  - Rajnović, Dragan
AU  - Zec, Slavica
AU  - Šiđanin, Leposava
AU  - Jovanović, Milan T.
PY  - 2006
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/579
AB  - An investigation has been conducted on two austempered ductile irons alloyed with Cu and Cu+Ni, austenitized at 900 degrees C and austempered at 350 degrees C. The microstructure and fracture mode developed through these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. Impact energy measurements were performed on un-notched Charpy specimens. The maximum value of retained austenite volume fraction observed in the material alloyed with Cu+Ni was higher than in that alloyed with Cu austenitized and austempered under the same conditions. This led to the material alloyed with Cu+Ni having higher impact energy and substantial plastic deformation.
PB  - Elsevier Science Inc, New York
T2  - Materials Characterization
T1  - Microstructure and fracture of alloyed austempered ductile iron
EP  - 217
IS  - 4-5
SP  - 211
VL  - 57
DO  - 10.1016/j.matchar.2006.01.014
ER  - 

@article{
author = "Erić, Olivera and Rajnović, Dragan and Zec, Slavica and Šiđanin, Leposava and Jovanović, Milan T.",
year = "2006",
abstract = "An investigation has been conducted on two austempered ductile irons alloyed with Cu and Cu+Ni, austenitized at 900 degrees C and austempered at 350 degrees C. The microstructure and fracture mode developed through these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. Impact energy measurements were performed on un-notched Charpy specimens. The maximum value of retained austenite volume fraction observed in the material alloyed with Cu+Ni was higher than in that alloyed with Cu austenitized and austempered under the same conditions. This led to the material alloyed with Cu+Ni having higher impact energy and substantial plastic deformation.",
publisher = "Elsevier Science Inc, New York",
journal = "Materials Characterization",
title = "Microstructure and fracture of alloyed austempered ductile iron",
pages = "217-211",
number = "4-5",
volume = "57",
doi = "10.1016/j.matchar.2006.01.014"
}

Erić, O., Rajnović, D., Zec, S., Šiđanin, L.,& Jovanović, M. T.. (2006). Microstructure and fracture of alloyed austempered ductile iron. in Materials Characterization
Elsevier Science Inc, New York., 57(4-5), 211-217.
https://doi.org/10.1016/j.matchar.2006.01.014

Erić O, Rajnović D, Zec S, Šiđanin L, Jovanović MT. Microstructure and fracture of alloyed austempered ductile iron. in Materials Characterization. 2006;57(4-5):211-217.
doi:10.1016/j.matchar.2006.01.014 .

Erić, Olivera, Rajnović, Dragan, Zec, Slavica, Šiđanin, Leposava, Jovanović, Milan T., "Microstructure and fracture of alloyed austempered ductile iron" in Materials Characterization, 57, no. 4-5 (2006):211-217,
https://doi.org/10.1016/j.matchar.2006.01.014 . .