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 %.
出处
《新技术新工艺》
2017年第1期1-4,共4页
New Technology & New Process
关键词
304L奥氏体不锈钢
焊接
去应力退火
温度
austenitic stainless steel 304L, weld, stress relief annealing, temperature
