焊接热循环峰值温度对10CrMo910钢硬度的影响  

Effects of peak temperature of welding thermal circle on hardness of 10CrMo910

作　　者：李海涛[1] 陈芙蓉[1] 胡艳华[1] 解瑞军[1] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,呼和浩特010051

出　　处：《焊接学报》2009年第2期75-78,共4页Transactions of The China Welding Institution

基　　金：内蒙古自然科学基金资助项目(200711020710)

摘　　要：利用自行设计的焊接热循环测试系统,通过分别实时测试两块试板的三个不同位置点在不同焊接参数下的温度信号,研究焊接热循环峰值温度对10CrMo910耐热钢的硬度变化的影响规律.结果表明,焊接热循环峰值温度对10CrMo910耐热钢硬度值影响较大,当峰值温度小于1150℃时,随着峰值温度的增高,硬度值增大;当峰值温度大于1150℃时,随着峰值温度的增高,硬度值反而有所减小.With the welding heat-cycle system which voluntarily design,through measuring temperature signal in real-time tests on different positions of two welded joints under the different welding parameters.The effects of peak temperature of welding thermal circle on hardness of 10CrMo910 have been researched.The test result indicated that welding heat-cycle has a greater influence on the value of hardness,when the peak value temperature is lower than 1 150 ℃,hardness value increases with the peak value temperature increasing;when the peak value temperature is higher than 1 150 ℃,hardness value decreases with the peak value temperature increasing.

关 键 词：焊接热循环 峰值温度 硬度 

分 类 号：TG115.5[金属学及工艺—物理冶金]