摘要
本文探讨了压力容器在成形和焊接过程中残余应力的产生机理,分析了残余应力引起容器疲劳破坏和应力腐蚀破坏的原因,提出了消除或减少压力容器残余应力的措施。图6,参4。
The paper discussed the cause theory of residual stress of pressure containers in the course of forming and welding as well as the reason of fatigue destruction and stress corrosion destruction of containers which are caused by the residual stress. It also gave some advice on how to remove or reduce the residual stress of pressure containers. 6figs., 4refs.
出处
《湘潭矿业学院学报》
1997年第2期54-60,共7页
Journal of Xiangtan Mining Institute
关键词
焊接
压力容器
残余应力
热应力
forming residual stress, welding residual stress, constraint stress, heat stress,temperature gradient, stress corrosion