Effect of 7050 Aluminium Alloy Microstructure on Residual Stress by Laser Shock Processing

摘要：

The solution treatment and solution and aging treatment(T6)were disposed on 7050 aluminium alloy,then local processed by laser shock processing (LSP)with high-rate neodymium glass laser.The microhardness and residual stress on the surface of 7050 aluminium alloy were tested,then how the microstructure influences the residual stress on the surface of 7050 aluminium alloy by laser shock processing was analysed.The results show that the microhardness and residual compressive stress on the surface of 7050 aluminium alloy treated by solution and aging treatment was higher,and decreased obviously treated by solution treatment;the microhardness and residual compressive stress on the surface of 7050 aluminium alloy increased obviously by solution treatment and solution and aging treatment after laser shock processing;treated by solution treatment and solution and aging treatment,the microhardness and residual compressive stress of the material with uniform original structure was higher than the material with nonuniform original structure.

关键词： 7050 aluminium alloy laser shock processing microstructure residual stress

作者: M.L.Zhang J.M.Wang Y.F.Jiang Q.L.Zhang Q.LZhou

作者单位: School of Material Science and Engineering,Jiangsu University,Zhenjiang 212013,China School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Advanced Material Research(2012 第二届先进材料研究国际会议 ICAMR2012)

会议地点: 成都

会议语种:英文

页码: 1363-1367

在线出版日期: 2012-01-07（万方平台首次上网日期，不代表论文的发表时间）