The paper discusses over the influence exerted by welding residual stress on the static strength, brittle fracture and stress-corrosioncracking of metal structure.
本文介绍了焊接残余应力对金属结构的静强度、脆性断裂以及应力腐蚀开裂的影响。
2
The stresscorrosioncracking sensitivity of the steel was low, and the fractography of its stresscorrosioncracking showed transgranular and quasi-cleavage fracture with secondary cracks.
研究表明该钢具有较好的抗应力腐蚀性能，其应力腐蚀断裂形貌为穿晶、解理断裂，并有二次裂纹。
3
The rupture reasons of tube joint weld of the stainless steel pressure meter are analyzed. It is characteristic of stresscorrosioncracking and inter granular fracture.