摘要
用储能焊方法对0Cr18Ni9不锈钢进行了点焊连接实验,分析了其焊接接头的组织形貌和形成规律。焊接接头由熔核区、半熔化区及热影响区组成。由于储能焊极短的焊接时间和大的冷却速率,熔核中奥氏体组织来不及长大,使得接头组织得到显著细化,热影响区组织未发生明显变化。
The capacitor discharge spot welding of the 0Cr18Ni9 stainless steel was conducted and the microstructure of the joint was investigated. The joint consists of nugget zone, semi-melt zone and heat affect zone. Due to very short time in welding and the large cooling rate of the joint, the transformation of austenite in the nugget suppresses, and the microstructure of the nugget refines remarkably, the microstructure of HAZ uncharges.
出处
《热加工工艺》
CSCD
北大核心
2009年第3期114-115,118,共3页
Hot Working Technology
基金
陕西理工学院校级项目(SLG0603)
关键词
奥氏体不锈钢
储能焊
焊接接头
austenitic stainless steel
capacitor discharge welding
welded joint
