题目内容

Coarse grain in HAZ may cause toughness decrease.

查看答案

搜索结果不匹配？点我反馈

更多问题

Sometimes, underbead cracks could serve as starting points of fatigue cracking.

In welding QTLA steels,the maximum allowable heat input per unit length of weld can be higher in T-joints than in butt joints.

LBW possibly increase the susceptibility to hydrogen induced cracking of QTLA steels.

Moisture, grease, rust are sources of H in weld.