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, 559-563
TY - CONF
AU - Grabulov, Vencislav
AU - Jovicić, R.
AU - Sedmak, Aleksandar
AU - Odanović, Zoran
AU - Petronić, S.
PY - 2009
UR - http://rims.institutims.rs/handle/123456789/106
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 - conv_1038
ER -
@conference{
author = "Grabulov, Vencislav and Jovicić, R. and Sedmak, Aleksandar and Odanović, Zoran and Petronić, S.",
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 = "conv_1038"
}
Grabulov, V., Jovicić, 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.
conv_1038
Grabulov V, Jovicić 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.
conv_1038 .
Grabulov, Vencislav, Jovicić, R., Sedmak, Aleksandar, Odanović, Zoran, Petronić, S., "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,
conv_1038 .
