强激光与粒子束Issue(2)：029002-1-029002-5,5.DOI:10.11884/HPLPB201628.029002
激光冲击强化提高纯铜耐磨性能的研究
Wear resistance of copper improved by laser shock peening
摘要
Abstract
In order to improve the wear resistance of copper,laser shock peening is put forward.The wear performances of copper with and without laser shock peening are measured by the ball milling experiment.The phase structure and grain distribu-tion of the surface layer with and without annealing are tested and analyzed by X-ray diffraction (XRD)and electron back scatter diffraction (EBSD).The mechanism of wear resistance improvement is discussed.The results indicate that after LSP,the specific wearability of copper has reduced by 1 9.5 percent compared with the sample untreated.Simultaneously,the initial friction coeffi-cient of copper increases with the surface roughness increasing,but with the friction cycle increasing,the coefficient of friction de-clines obviously.Because of the grains refining,twin and sub-structure which block dislocation motion and increase the deforma-tion resistance,the wear resistance of copper treated by LSP is improved.关键词
激光冲击强化/纯铜/耐磨性能/电子背散射衍射技术Key words
laser shock peening/copper/wear resistance/electron back scatter diffraction分类
矿业与冶金引用本文复制引用
李玉琴,王学德,杨竹芳,宋飞龙..激光冲击强化提高纯铜耐磨性能的研究[J].强激光与粒子束,2016,(2):029002-1-029002-5,5.基金项目
国家自然科学基金项目(51305456) （51305456）
