摘要
采用低温热处理的方法处理202不锈钢电阻焊焊接接头,并且对热处理后的焊接接头进行金相采集、拉伸试验、磨损试验、抗疲劳性能测试.实验表明:随着保温温度的升高,焊缝晶粒尺寸逐渐细化,且温度对组织的影响大于时间的影响,疲劳寿命随着热处理温度和时间的延长逐渐增大,380℃达到或者接近消除焊接应力所需的焊接温度.
The electric resistance welded joints of 202 stainless steel were treated with low temperature heat treatment method, and then proceeded by metallographic collection, tensile test, wear test and fatigue resistance test. The experimental results show that： with the rising of temperature, the grain size of weld joints is gradually refined, and the effect of temperature is greater than the effect of time on the microstructure. Moreover, the fatigue life increases with the increase of heat treatment temperature and time, and 380 ℃ is at or near the required welding temperature of eliminating welding stress.
出处
《有色金属科学与工程》
CAS
2015年第4期66-69,共4页
Nonferrous Metals Science and Engineering
关键词
低温热处理
不锈钢
电阻焊
焊接接头
显微组织
low, temperature heat treatment
stainless steel
electric resistance welded
welded joints
microstructure
