Abstract
It is well known that the under-bead crackings are occurred at multipass welds in high-strength steels. In this study, relative susceptibility to hydrogen-assisted cracking in the HT-80 steel welds is evaluated by using 2 pass implant method, the simulation technique of weld HAZ (heat affected zone) and the method of hydrogen chargong into the synthetic HAZ. Results indicate that, the shortest incubation time to fracture is observed at the first pass bond region subjected to heat cycle of 500-600 degree C at second pass, due to the stress and hydrogen concentration at the part. The morphology of crack growth is predominantly integranular. Those tendency are observed for both the implant and the simulation tests.
| Original language | English |
|---|---|
| Pages (from-to) | 1-15 |
| Number of pages | 15 |
| Journal | Papers of Ship Research Institute (Tokyo) |
| Volume | 24 |
| Issue number | 3 |
| Publication status | Published - 1987 May 1 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Engineering(all)
Cite this
COLD CRACKING BEHAVIOR OF HEAT AFFECTED ZONES OF STEEL AFFECTED BY MULTIPASS WELDING THERMAL CYCLES. / Nishikawa, Kazumi; Kobayashi, Takuya; Uematsu, Susumu.
In: Papers of Ship Research Institute (Tokyo), Vol. 24, No. 3, 01.05.1987, p. 1-15.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - COLD CRACKING BEHAVIOR OF HEAT AFFECTED ZONES OF STEEL AFFECTED BY MULTIPASS WELDING THERMAL CYCLES.
AU - Nishikawa, Kazumi
AU - Kobayashi, Takuya
AU - Uematsu, Susumu
PY - 1987/5/1
Y1 - 1987/5/1
N2 - It is well known that the under-bead crackings are occurred at multipass welds in high-strength steels. In this study, relative susceptibility to hydrogen-assisted cracking in the HT-80 steel welds is evaluated by using 2 pass implant method, the simulation technique of weld HAZ (heat affected zone) and the method of hydrogen chargong into the synthetic HAZ. Results indicate that, the shortest incubation time to fracture is observed at the first pass bond region subjected to heat cycle of 500-600 degree C at second pass, due to the stress and hydrogen concentration at the part. The morphology of crack growth is predominantly integranular. Those tendency are observed for both the implant and the simulation tests.
AB - It is well known that the under-bead crackings are occurred at multipass welds in high-strength steels. In this study, relative susceptibility to hydrogen-assisted cracking in the HT-80 steel welds is evaluated by using 2 pass implant method, the simulation technique of weld HAZ (heat affected zone) and the method of hydrogen chargong into the synthetic HAZ. Results indicate that, the shortest incubation time to fracture is observed at the first pass bond region subjected to heat cycle of 500-600 degree C at second pass, due to the stress and hydrogen concentration at the part. The morphology of crack growth is predominantly integranular. Those tendency are observed for both the implant and the simulation tests.
UR - http://www.scopus.com/inward/record.url?scp=0023343250&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0023343250&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0023343250
VL - 24
SP - 1
EP - 15
JO - Papers of Ship Research Institute (Tokyo)
JF - Papers of Ship Research Institute (Tokyo)
SN - 0563-7546
IS - 3
ER -