%0 Journal Article
%T Laser Shock Processing of an Austenitic Stainless Steel and a Nickel-base Superalloy
%A Huaming WANG
%A Xijun SUN
%A Xiaoxuan LI
%A <br>HuamingWANG
%A XijunSUN
%A XiaoxuanLI
%J 材料科学技术学报
%D 2003
%I 
%X An austenitic stainless steel 1Cr18Ni9Ti and a solid solution-strengthened Ni-base superalloy GH30 were shock processed using a Q-switched pulsed Nd-glass laser. Microstructure, hardness and residual stress of the laser shock processed surface were investigated as functions of laser processing parameters. Results show that high density of dislocations and fine deformation twins are produced in the laser shock processed surface layers in both the austenitic stainless steel and the nickel-base superalloy. Extensive strain-induced martensite was also observed in the laser shock processed zone of the austenitic steel. The hardness of the laser shock processed surface was significantly enhanced and compressive stress as high as 400 MPa was produced in the laser shock processed surface.
%K Laser shock processing
%K Austenitic stainless steel
%K Nickel-base superalloy
%K Surface mechanical properties
%K Residual stress<br>奥氏体不锈钢
%K 镍基合金
%K 超耐热合金
%K 激光热处理
%K 表面力学性能
%K 残余应力
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=8EC8F87E61223AF21AA0B3BD1EF4EA38&yid=D43C4A19B2EE3C0A&vid=2A8D03AD8076A2E3&iid=94C357A881DFC066&sid=EE23223CE4332BD7&eid=B79ACB6EBBFC9730&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=10