铝合金搅拌摩擦焊接头内部残余应力的短波长X射线测试  

Measuring Internal Residual Stresses in Aluminum Alloy Friction Stir Welded Joint by Short Wavelength X-ray

作　　者：窦作勇[1,2] 张鹏程[1,2,3] 李云[2] 王茂银[1] 董平[1] 陈力[2] 郑林[4] 裴利程 

机构地区：[1]表面物理与化学重点实验室,绵阳621907 [2]中国工程物理研究院材料研究所,绵阳621700 [3]四川艺精科技集团有限公司,绵阳621700 [4]中国兵器工业第五九研究所,重庆400039 [5]中国航天科技集团长征机械厂,成都610100

出　　处：《机械工程材料》2015年第3期107-110,共4页Materials For Mechanical Engineering

基　　金：国家重大科学仪器设备开发专项项目(2012YQ130234)

摘　　要：采用自制的短波长X射线应力分析仪测定了2024-T351铝合金板搅拌摩擦焊接头的内部残余应力分布。结果表明:接头内部的纵向残余应力呈典型的"M"型分布,且高于横向残余应力,应力峰值位于焊缝热机影响区和热影响区交界附近,测试结果与文献报道结果相符。The internal residual stress distribution in 2024-T351 aluminum alloy friction stir welded joint was measured using the independently developed short wavelength X-ray stress analyzer.The results show that the longitudinal residual stress was in typical＂M＂shape distribution and higher than that in the transverse direction.It was found that the peak stress was located near the interface between the thermomechanically affected zone and the heat affected zone,and the results agreed with those from references.

关 键 词：搅拌摩擦焊 残余应力 X射线衍射 铝合金 

分 类 号：TG404[金属学及工艺—焊接]