Effect of strength mismatch on fracture toughness of HSLA steel weld joints
Conference
·
OSTI ID:205433
- Univ. of Maribor (Slovenia). Faculty of Mechanical Engineering
- GKSS Research Center, Geesthacht (Germany). Inst. of Material Research
The purpose of this experimental work is to present the results of measured toughness and strength on mismatched weld joints made on HSLA steel grade HT 80. In the determined over and undermatched weld joints the local mismatching in the through thickness direction was found by hardness measurement. It seems that local mismatch because of WM low toughness has controlled the fracture behavior of weld metal and HAZ in both cases instead of the global one. Direct local CTOD({delta}{sub 5}) technique is found to be particular useful for the determination of fracture toughness values on mismatched weld joints.
- OSTI ID:
- 205433
- Report Number(s):
- CONF-950695--; ISBN 0-7918-1309-6
- Country of Publication:
- United States
- Language:
- English
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