304L奥氏体不锈钢的焊接残余应力热处理去除试验研究  

Test and Research on Elimination Welding Residual Stress in 304L Austenite Stainless Steel with Heat Treatment Method

作　　者：陈万华[1] 牟志超[1] 祝长江[1] 孙德文[1] 王太江[1] 吴祥新 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]武汉润之达有限责任公司,湖北武汉430064

出　　处：《新技术新工艺》2017年第1期1-4,共4页New Technology & New Process

摘　　要：对某低温压力容器用304L钢,焊后去应力退火后焊接组织与性能的影响进行了试验。结果表明,该低温压力容器焊接接头残余应力去除的最佳热处理温度取570℃较为适宜,在该热处理温度下,焊缝金属组织结构基本无变化,焊缝冲击韧度仍维持较高值,并且热处理后焊缝心部的应力得到较充分的释放,残余应力消除约40%。The influence of the different heat treatment processes on the 304L austenitic stainless steel organization and performance is studied. Through the 304L austenitic stainless steel quench processing by heating up to 570 ℃ ,keep 1 hour time,then cool the air. It is concluded that the microstructure and mechanical property changes slightly, and the impact toughness does not change significantly, which could eliminate welding residual stress by 40 %.

关 键 词：304L奥氏体不锈钢 焊接 去应力退火 温度 

分 类 号：TG156.23[金属学及工艺—热处理]