Surface Profiles and Residual Stresses on Laser Shocked Zone of Ti6Al4V Titanium Alloy

作     者：Cao Ziwen,Gong Shuili,Zou Shikun,Che Zhigang National Key Laboratory of High Energy Density Beam Processing Technology,Beijing Aeronautical Manufacturing Technology Research Institute,Beijing 100024,China 

作者机构：Beijing Aeronaut Mfg Technol Res Inst Natl Key Lab High Energy Dens Beam Proc Technol Beijing 100024 Peoples R China 

出 版 物：《稀有金属材料与工程》 (Rare Metal Materials and Engineering)

年 卷 期：2011年第40卷第S4期

页      面：190-193页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：laser shock processing Ti6Al4V surface profiles residual stresses 

摘      要：The latest applications of laser shock processing were summarized in this paper,and laser peening with water confined layer has been applied to Ti6Al4V titanium alloy using Nd:glass pulse *** profile of plastic deformation and residual stresses on metal surface were studied with different laser power *** investigation results show that peak depth of plastic deformation is in linear proportion to laser power density (5.75GW/cm2 to 9.5 GW/cm2),and maximal surface compressive residual stress is up to 375MPa at 8.25GW/*** was ensured that the compressive residual stress field related to laser power density and shocked *** spot overlapping ratio of 33%,the circle spot can get a relative smooth *** strip with thickness 2.5mm was shocked as the preliminary verification test of residual stresses,and it is shown that excessive peening times is unavailable to thin-wall parts just as edge of fan blades.