CAJ | 학술논문

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。
채용저온열처리적방법처리202불수강전조한한접접두，병차대열처리후적한접접두진행금상채집、랍신시험、마손시험、항피로성능측시。실험표명：수착보온온도적승고，한봉정립척촌축점세화，차온도대조직적영향대우시간적영향，피로수명수착열처리온도화시간적연장축점증대，380℃체도혹자접근소제한접응력소수적한접온도。
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.