摘要
采用铁研试验及插销试验法对HQ—70钢的冷裂敏感性进行了研究,绘制了该钢的冷裂图,并对其冷裂敏感性作了评价.推荐该钢防止冷裂的安全预热温度为125℃。
The cold cracking susceptibility of HQ-70 steel was studied by use of theTEKKEN test and Implant test.The cold cracking diagrams of this steel weredrawn,and its susceptibility to cotd clacking was evaluated.It is suggestedthat the safe preheating temperature for avoiding the emergence of cold crackis 125℃.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
1990年第3期169-174,共6页
Transactions of The China Welding Institution
关键词
低合金钢
高强度钢
焊接冷裂
Low alloy steel
High strength steel
Cracks
