高張力鋼溶接熱影響部における水素による割れと部分溶融(第 3 報) : 種々熱サイクル下における HY80 鋼と SM50B 鋼の水素助長割れ感受性

概要

論文の詳細を見る
To get more understandings about hydrogen-assisted cracking features occurred in HAZ of HY80 steel, morphologies of cracking and stress necessary to initiate crack were investigated on the specimens heated under various thermal cycle conditions. Furthermore, the similar experiments were performed on SM50B steel to compare their susceptibilities to hydrogen-assisted cracking in HAZ of both steels. The susceptibility of HY80 steel to hydrogen-assisted cracking in HAZ increased with rise in heating temperature under any thermal cycle condition. In particular, when kept at the peak temperature and at a certain temperature during cooling, it was more raised. However, no dependence of hydrogen-assisted cracking susceptibility in SM50B steel HAZ on the peak temperature was recognized.
社団法人溶接学会の論文
1982-10-05