LASER WELDING OF NITI SHAPE MEMORY ALLOY
With high energy YAG Laser beam method, the weld ability of the NiTi shape memory alloy sheet was studied. The mechanical properties of both reference and laser welded samples were tested by stress-strain measurements. A systematic comparison of the results was carried out. Moreover, differential scanning calorimeter (DSC) investigations on samples taken from the heat affected zone and hardness measurements allowed further clarification that the modification was induced by the welding procedure. The crystal grain in welded joint is large and new phases such as Ni3Ti separate out. The results obtained on laser welded samples indicate the recovery mechanisms are little weakly modified by the presence of the welding zone.
Wei Wang Li Chen Xing-Ke Zhao Ji-Hua Huang
Beijing Aeronautical Manufacturing Technology Research Institute, Beijing, 100024, China University Beijing Aeronautical Manufacturing Technology Research Institute, Beijing, 100024, China University of Science and Technology Beijing, Beijing 100083, China
国际会议
第三届太平洋国际激光与光学应用会议(PICALO 2008)
北京
英文
112-115
2008-04-16（万方平台首次上网日期，不代表论文的发表时间）