残余应力分析在热强不锈钢轴中的应用  

Application of Residual Stress Analysis in Heat-resistance Stainless Steel Spindle

作　　者：康爱英[1] 袁海洋[1] 

机构地区：[1]湖南信息职业技术学院机电工程系,湖南长沙410200

出　　处：《热加工工艺》2014年第14期178-179,182,共3页Hot Working Technology

基　　金：湖南省教育厅科学研究项目(13C653)

摘　　要：针对1Cr12Ni3Mo2VN热强不锈钢主轴工作在高速、中温、腐蚀环境中易发生的表面裂纹萌生与扩展问题,在热处理后引入几种表面喷丸处理工艺,并模拟真实工况,通过无损残余应力测试手段检验其喷丸处理的效果。结果表明,喷丸强度过小或过大均不利,合理选择喷丸工艺则试件的疲劳寿命可得到有效延长。Aiming at fatigue crack initiation and propagation of heat-resistant stainless steel spindle while working in medium-temperature, corrosive and high-speed conditions, several surface shot-peening treatment processes were introduced after heat treatment. The real working conditions were simulated to evaluate the enhancing effects by non-destructive residual stress measurement. The results show that excessive low and large shot-peening intensities are adverse, and fatigue life of the spindle will be effectively prolonged by adapting an appropriate shot-peening treatment.

关 键 词：热强不锈钢 主轴 残余应力 喷丸 无损 

分 类 号：TG156.3[金属学及工艺—热处理]