Laser Processing of Ni-Based Superalloy Surfaces Susceptible to Stress Concentration
2021
Autori
Rajcić, BorisPetronić, Sanja
Čolić, Katarina
Stević, Zoran
Petrović, Ana
Mišković, Žarko
Milovanović, Dubravka
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Reliable and resilient constructions are basic for ensuring the safety of various structures. The superalloys are used as constructive materials due to their superb mechanical properties and endurance. However, even these materials can have certain areas where the stress concentration is higher than expected, such as drilling holes, which are common in various structures that need additional enhancement. Surface laser modifications of the areas surrounding the holes drilled in Nimonic 263 sheets are done by pulsed picosecond and nanosecond Nd:YAG laser irradiations with pulse durations of 170 ps and lt = 8 ns, respectively. Following the laser surface treatment, the effectiveness of the enhancement was analyzed by the microhardness test and the deformation test. The results show that the deformation and stress values are decreased by 25-40 percent, showing the improvement in the resilience to deformation. The Vickers microhardness test results indicate an improvement in the Nimonic 26...3 microhardness. The dimensions of the microcracks are higher for the untreated material in comparison to the laser-treated material.
Ključne reči:
surface modification / Nimonic 263 alloy / laser processing / digital image correlation (DIC) methodIzvor:
Metals, 2021, 11, 5Izdavač:
- MDPI, Basel
Finansiranje / projekti:
- Central Institute for Conservation, Belgrade, Serbia
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200051 (Institut za opštu i fizičku hemiju, Beograd) (RS-MESTD-inst-2020-200051)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200131 (Univerzitet u Beogradu, Tehnički fakultet u Boru) (RS-MESTD-inst-2020-200131)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200105 (Univerzitet u Beogradu, Mašinski fakultet) (RS-MESTD-inst-2020-200105)
DOI: 10.3390/met11050750
ISSN: 2075-4701
WoS: 000662567400001
Scopus: 2-s2.0-85114052771
Institucija/grupa
Inovacioni centarTY - JOUR AU - Rajcić, Boris AU - Petronić, Sanja AU - Čolić, Katarina AU - Stević, Zoran AU - Petrović, Ana AU - Mišković, Žarko AU - Milovanović, Dubravka PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3500 AB - Reliable and resilient constructions are basic for ensuring the safety of various structures. The superalloys are used as constructive materials due to their superb mechanical properties and endurance. However, even these materials can have certain areas where the stress concentration is higher than expected, such as drilling holes, which are common in various structures that need additional enhancement. Surface laser modifications of the areas surrounding the holes drilled in Nimonic 263 sheets are done by pulsed picosecond and nanosecond Nd:YAG laser irradiations with pulse durations of 170 ps and lt = 8 ns, respectively. Following the laser surface treatment, the effectiveness of the enhancement was analyzed by the microhardness test and the deformation test. The results show that the deformation and stress values are decreased by 25-40 percent, showing the improvement in the resilience to deformation. The Vickers microhardness test results indicate an improvement in the Nimonic 263 microhardness. The dimensions of the microcracks are higher for the untreated material in comparison to the laser-treated material. PB - MDPI, Basel T2 - Metals T1 - Laser Processing of Ni-Based Superalloy Surfaces Susceptible to Stress Concentration IS - 5 VL - 11 DO - 10.3390/met11050750 ER -
@article{ author = "Rajcić, Boris and Petronić, Sanja and Čolić, Katarina and Stević, Zoran and Petrović, Ana and Mišković, Žarko and Milovanović, Dubravka", year = "2021", abstract = "Reliable and resilient constructions are basic for ensuring the safety of various structures. The superalloys are used as constructive materials due to their superb mechanical properties and endurance. However, even these materials can have certain areas where the stress concentration is higher than expected, such as drilling holes, which are common in various structures that need additional enhancement. Surface laser modifications of the areas surrounding the holes drilled in Nimonic 263 sheets are done by pulsed picosecond and nanosecond Nd:YAG laser irradiations with pulse durations of 170 ps and lt = 8 ns, respectively. Following the laser surface treatment, the effectiveness of the enhancement was analyzed by the microhardness test and the deformation test. The results show that the deformation and stress values are decreased by 25-40 percent, showing the improvement in the resilience to deformation. The Vickers microhardness test results indicate an improvement in the Nimonic 263 microhardness. The dimensions of the microcracks are higher for the untreated material in comparison to the laser-treated material.", publisher = "MDPI, Basel", journal = "Metals", title = "Laser Processing of Ni-Based Superalloy Surfaces Susceptible to Stress Concentration", number = "5", volume = "11", doi = "10.3390/met11050750" }
Rajcić, B., Petronić, S., Čolić, K., Stević, Z., Petrović, A., Mišković, Ž.,& Milovanović, D.. (2021). Laser Processing of Ni-Based Superalloy Surfaces Susceptible to Stress Concentration. in Metals MDPI, Basel., 11(5). https://doi.org/10.3390/met11050750
Rajcić B, Petronić S, Čolić K, Stević Z, Petrović A, Mišković Ž, Milovanović D. Laser Processing of Ni-Based Superalloy Surfaces Susceptible to Stress Concentration. in Metals. 2021;11(5). doi:10.3390/met11050750 .
Rajcić, Boris, Petronić, Sanja, Čolić, Katarina, Stević, Zoran, Petrović, Ana, Mišković, Žarko, Milovanović, Dubravka, "Laser Processing of Ni-Based Superalloy Surfaces Susceptible to Stress Concentration" in Metals, 11, no. 5 (2021), https://doi.org/10.3390/met11050750 . .