An analysis of the influence of weldment heterogeneity in ferrite-austenite welded structure
Abstract
An analysis of the influence of heterogeneity of the ferriteaustenite welded joint on its integrity has been performed. The Charpy specimens, with notch positioned in different regions of welded joint, have been tested using the instrumented pendulum to separate crack initiation and growth energy. In all cases tested (different heat input, room and low temperature, down to -60°C), weld metal had the lowest toughness, due to the presence of S ferrite, which was not the case in the heat affected zones, having surprisingly high toughness, including both crack initiation and growth energies. Finally, J-R curves have been obtained by using standard fracture mechanics testing procedure and compared with crack driving forces, obtained numerically using King's method, enabling estimation of influence of cracks on integrity of ferriteaustenite welded joints in cylindrical pressure vessel.
Source:
Welding in the World, 2009, 53, SPECIAL ISSUE, 559-563Collections
Institution/Community
Inovacioni centarTY - CONF AU - Grabulov, Vencislav AU - Jovičić, Radomir AU - Sedmak, Aleksandar AU - Odanović, Zoran AU - Petronić, Sanja PY - 2009 UR - https://machinery.mas.bg.ac.rs/handle/123456789/883 AB - An analysis of the influence of heterogeneity of the ferriteaustenite welded joint on its integrity has been performed. The Charpy specimens, with notch positioned in different regions of welded joint, have been tested using the instrumented pendulum to separate crack initiation and growth energy. In all cases tested (different heat input, room and low temperature, down to -60°C), weld metal had the lowest toughness, due to the presence of S ferrite, which was not the case in the heat affected zones, having surprisingly high toughness, including both crack initiation and growth energies. Finally, J-R curves have been obtained by using standard fracture mechanics testing procedure and compared with crack driving forces, obtained numerically using King's method, enabling estimation of influence of cracks on integrity of ferriteaustenite welded joints in cylindrical pressure vessel. C3 - Welding in the World T1 - An analysis of the influence of weldment heterogeneity in ferrite-austenite welded structure EP - 563 IS - SPECIAL ISSUE SP - 559 VL - 53 UR - https://hdl.handle.net/21.15107/rcub_machinery_883 ER -
@conference{ author = "Grabulov, Vencislav and Jovičić, Radomir and Sedmak, Aleksandar and Odanović, Zoran and Petronić, Sanja", year = "2009", abstract = "An analysis of the influence of heterogeneity of the ferriteaustenite welded joint on its integrity has been performed. The Charpy specimens, with notch positioned in different regions of welded joint, have been tested using the instrumented pendulum to separate crack initiation and growth energy. In all cases tested (different heat input, room and low temperature, down to -60°C), weld metal had the lowest toughness, due to the presence of S ferrite, which was not the case in the heat affected zones, having surprisingly high toughness, including both crack initiation and growth energies. Finally, J-R curves have been obtained by using standard fracture mechanics testing procedure and compared with crack driving forces, obtained numerically using King's method, enabling estimation of influence of cracks on integrity of ferriteaustenite welded joints in cylindrical pressure vessel.", journal = "Welding in the World", title = "An analysis of the influence of weldment heterogeneity in ferrite-austenite welded structure", pages = "563-559", number = "SPECIAL ISSUE", volume = "53", url = "https://hdl.handle.net/21.15107/rcub_machinery_883" }
Grabulov, V., Jovičić, R., Sedmak, A., Odanović, Z.,& Petronić, S.. (2009). An analysis of the influence of weldment heterogeneity in ferrite-austenite welded structure. in Welding in the World, 53(SPECIAL ISSUE), 559-563. https://hdl.handle.net/21.15107/rcub_machinery_883
Grabulov V, Jovičić R, Sedmak A, Odanović Z, Petronić S. An analysis of the influence of weldment heterogeneity in ferrite-austenite welded structure. in Welding in the World. 2009;53(SPECIAL ISSUE):559-563. https://hdl.handle.net/21.15107/rcub_machinery_883 .
Grabulov, Vencislav, Jovičić, Radomir, Sedmak, Aleksandar, Odanović, Zoran, Petronić, Sanja, "An analysis of the influence of weldment heterogeneity in ferrite-austenite welded structure" in Welding in the World, 53, no. SPECIAL ISSUE (2009):559-563, https://hdl.handle.net/21.15107/rcub_machinery_883 .