“零保温”淬火温度对活塞杆连续驱动摩擦焊接头组织与拉伸性能的影响  

Effects of Quenching Temperature without Heat preservation on Microstructure and Tensile Properties of Piston Rod Continuous Drive Friction Welded Joint

作　　者：杨明鄂 张婷婷 龙浩南 YANG Minge;ZHANG Tingting;LONG Haonan(Hunan Automotive Engineering Vocational College,Zhuzhou 412001, China;CRRC Zhuzhou Locomotive Co., Ltd., Zhuzhou 412001, China)

机构地区：[1]湖南汽车工程职业学院,湖南株洲412001 [2]中车株洲电力机车有限公司,湖南株洲412001

出　　处：《机械工程师》2018年第12期102-103,共2页Mechanical Engineer

基　　金：湖南省教育厅科研资助项目(17C0813)

摘　　要：对活塞杆连续摩擦焊接头"零保温"淬火热处理工艺进行了设计和实验,并结合热处理后接头的拉伸性能测试、显微组织观察、拉伸断口分析等,分析了"零保温"淬火温度对焊接接头拉伸性能的影响,研究表明:采用"零保温"淬火的调质热处理能够改善接头微观组织,细化晶粒,在保持良好延塑性的情况下有效提高接头拉伸强度。The quenching heat treatment process of the piston rod continuous friction welding head without holding time is designed and tested.Combined with the tensile test,microstructure observation and tensile fracture analysis of the joint after heat treatment,the influence of the quenching temperature without holding time on the tensile properties of the welded joint is analyzed.Studies have shown that the quenching and tempering treatment without quenching holding time can improve the microstructure of the joint,refine the grains,and effectively improve the tensile strength of the joint while maintaining good ductility.

关 键 词：淬火保温时间 连续驱动摩擦焊 “零保温” 拉伸性能 组织 

分 类 号：TG156.1[金属学及工艺—热处理] TG441.8[金属学及工艺—金属学]