Impact of temperature and exploitation time on plane strain fracture toughness, k-ic, in a welded joint
Апстракт
This paper presents the analysis of the impact of temperature and exploitation time on the tendency toward brittle fracture of welded joint constituents of new and exploited low-alloyed Cr-Mo steel A-387 Gr. B, by using fracture mechanics parameters. The exploited parent metal is a part of the reactor mantle which has been in service for over 40 years and is in the damage repair stage, i.e. in the stage where a part of the mantle is being replaced with new material. Testing of the fracture toughness at plane strain is done in order to determine critical value of stress intensity factor, K-Ic, i.e. evaluation of behaviour of new and exploited parent metal (PM), weld metal (WM) and heat affected zone (HAZ). Based on the testing results, the analysis of tendency to brittle fracture represents the comparison of the obtained values for characteristic areas of the welded joint and the justification of selected welding technology.
Кључне речи:
welded joint / plane strain fracture toughness / low-alloyed steel / critical crack length / crackИзвор:
Structural Integrity and Life, 2017, 17, 3, 239-244Издавач:
- Institut za ispitivanje materijala, Beograd
Финансирање / пројекти:
- Динамика хибридних система сложених структура. Механика материјала (RS-MESTD-Basic Research (BR or ON)-174001)
Институција/група
Inovacioni centarTY - JOUR AU - Camagić, Ivica AU - Sedmak, Simon AU - Sedmak, Aleksandar AU - Burzić, Zijah AU - Todić, Aleksandar PY - 2017 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2704 AB - This paper presents the analysis of the impact of temperature and exploitation time on the tendency toward brittle fracture of welded joint constituents of new and exploited low-alloyed Cr-Mo steel A-387 Gr. B, by using fracture mechanics parameters. The exploited parent metal is a part of the reactor mantle which has been in service for over 40 years and is in the damage repair stage, i.e. in the stage where a part of the mantle is being replaced with new material. Testing of the fracture toughness at plane strain is done in order to determine critical value of stress intensity factor, K-Ic, i.e. evaluation of behaviour of new and exploited parent metal (PM), weld metal (WM) and heat affected zone (HAZ). Based on the testing results, the analysis of tendency to brittle fracture represents the comparison of the obtained values for characteristic areas of the welded joint and the justification of selected welding technology. PB - Institut za ispitivanje materijala, Beograd T2 - Structural Integrity and Life T1 - Impact of temperature and exploitation time on plane strain fracture toughness, k-ic, in a welded joint EP - 244 IS - 3 SP - 239 VL - 17 UR - https://hdl.handle.net/21.15107/rcub_machinery_2704 ER -
@article{ author = "Camagić, Ivica and Sedmak, Simon and Sedmak, Aleksandar and Burzić, Zijah and Todić, Aleksandar", year = "2017", abstract = "This paper presents the analysis of the impact of temperature and exploitation time on the tendency toward brittle fracture of welded joint constituents of new and exploited low-alloyed Cr-Mo steel A-387 Gr. B, by using fracture mechanics parameters. The exploited parent metal is a part of the reactor mantle which has been in service for over 40 years and is in the damage repair stage, i.e. in the stage where a part of the mantle is being replaced with new material. Testing of the fracture toughness at plane strain is done in order to determine critical value of stress intensity factor, K-Ic, i.e. evaluation of behaviour of new and exploited parent metal (PM), weld metal (WM) and heat affected zone (HAZ). Based on the testing results, the analysis of tendency to brittle fracture represents the comparison of the obtained values for characteristic areas of the welded joint and the justification of selected welding technology.", publisher = "Institut za ispitivanje materijala, Beograd", journal = "Structural Integrity and Life", title = "Impact of temperature and exploitation time on plane strain fracture toughness, k-ic, in a welded joint", pages = "244-239", number = "3", volume = "17", url = "https://hdl.handle.net/21.15107/rcub_machinery_2704" }
Camagić, I., Sedmak, S., Sedmak, A., Burzić, Z.,& Todić, A.. (2017). Impact of temperature and exploitation time on plane strain fracture toughness, k-ic, in a welded joint. in Structural Integrity and Life Institut za ispitivanje materijala, Beograd., 17(3), 239-244. https://hdl.handle.net/21.15107/rcub_machinery_2704
Camagić I, Sedmak S, Sedmak A, Burzić Z, Todić A. Impact of temperature and exploitation time on plane strain fracture toughness, k-ic, in a welded joint. in Structural Integrity and Life. 2017;17(3):239-244. https://hdl.handle.net/21.15107/rcub_machinery_2704 .
Camagić, Ivica, Sedmak, Simon, Sedmak, Aleksandar, Burzić, Zijah, Todić, Aleksandar, "Impact of temperature and exploitation time on plane strain fracture toughness, k-ic, in a welded joint" in Structural Integrity and Life, 17, no. 3 (2017):239-244, https://hdl.handle.net/21.15107/rcub_machinery_2704 .