Microstructural and fracture analysis of microalloyed steel weld metal
2018
Authors
Prokić-Cvetković, RadicaPopović, Olivera
Jovičić, Radomir
Milošević, Nenad
Burzić, Zijah
Cvetković, Ivana
Conference object (Published version)
Metadata
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In this paper is presented behavior of microalloyed steel weld metal with niobium during impact testing, as well as microstructural characterization. Impact tests were done on instrumented Charpy pendulum at room temperature, at -40 degrees C and -55 degrees C. At room temperature, crack propagation energy is much higher than crack initiation energy, while at -40 degrees C and -55 degrees C crack growth energy is lower than crack initiation energy. Fractographic investigation of the fracture surfaces has shown that at room temperature ductile trans-granular fracture is dominant, with a small amount of brittle trans-granular fracture. At lower temperature, the share of brittle fracture is increased, and inter-granular brittle fracture becomes dominant
Keywords:
weld metal / toughness / microstructures / micro-alloyed steel / fracture analysisSource:
Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity, 2018, 13, 2221-2226Publisher:
- Elsevier Science Bv, Amsterdam
Funding / projects:
- Research of opportunities to improve welding technology for micro-alloyed steels (RS-MESTD-Technological Development (TD or TR)-35024)
DOI: 10.1016/j.prostr.2018.12.137
ISSN: 2452-3216
WoS: 000459860900363
Scopus: 2-s2.0-85064636208
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Mašinski fakultetTY - CONF AU - Prokić-Cvetković, Radica AU - Popović, Olivera AU - Jovičić, Radomir AU - Milošević, Nenad AU - Burzić, Zijah AU - Cvetković, Ivana PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2884 AB - In this paper is presented behavior of microalloyed steel weld metal with niobium during impact testing, as well as microstructural characterization. Impact tests were done on instrumented Charpy pendulum at room temperature, at -40 degrees C and -55 degrees C. At room temperature, crack propagation energy is much higher than crack initiation energy, while at -40 degrees C and -55 degrees C crack growth energy is lower than crack initiation energy. Fractographic investigation of the fracture surfaces has shown that at room temperature ductile trans-granular fracture is dominant, with a small amount of brittle trans-granular fracture. At lower temperature, the share of brittle fracture is increased, and inter-granular brittle fracture becomes dominant PB - Elsevier Science Bv, Amsterdam C3 - Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity T1 - Microstructural and fracture analysis of microalloyed steel weld metal EP - 2226 SP - 2221 VL - 13 DO - 10.1016/j.prostr.2018.12.137 ER -
@conference{ author = "Prokić-Cvetković, Radica and Popović, Olivera and Jovičić, Radomir and Milošević, Nenad and Burzić, Zijah and Cvetković, Ivana", year = "2018", abstract = "In this paper is presented behavior of microalloyed steel weld metal with niobium during impact testing, as well as microstructural characterization. Impact tests were done on instrumented Charpy pendulum at room temperature, at -40 degrees C and -55 degrees C. At room temperature, crack propagation energy is much higher than crack initiation energy, while at -40 degrees C and -55 degrees C crack growth energy is lower than crack initiation energy. Fractographic investigation of the fracture surfaces has shown that at room temperature ductile trans-granular fracture is dominant, with a small amount of brittle trans-granular fracture. At lower temperature, the share of brittle fracture is increased, and inter-granular brittle fracture becomes dominant", publisher = "Elsevier Science Bv, Amsterdam", journal = "Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity", title = "Microstructural and fracture analysis of microalloyed steel weld metal", pages = "2226-2221", volume = "13", doi = "10.1016/j.prostr.2018.12.137" }
Prokić-Cvetković, R., Popović, O., Jovičić, R., Milošević, N., Burzić, Z.,& Cvetković, I.. (2018). Microstructural and fracture analysis of microalloyed steel weld metal. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity Elsevier Science Bv, Amsterdam., 13, 2221-2226. https://doi.org/10.1016/j.prostr.2018.12.137
Prokić-Cvetković R, Popović O, Jovičić R, Milošević N, Burzić Z, Cvetković I. Microstructural and fracture analysis of microalloyed steel weld metal. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity. 2018;13:2221-2226. doi:10.1016/j.prostr.2018.12.137 .
Prokić-Cvetković, Radica, Popović, Olivera, Jovičić, Radomir, Milošević, Nenad, Burzić, Zijah, Cvetković, Ivana, "Microstructural and fracture analysis of microalloyed steel weld metal" in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity, 13 (2018):2221-2226, https://doi.org/10.1016/j.prostr.2018.12.137 . .