激光瞬间作用后金属表层特性及机理研究  

Investigations on the features and mechanism of metal surface effected transiently by laser pulse

作　　者：王春圃 谢连俊[1] 杨旭东[1] 刘玉强[1] 蔡华甦[2] 

机构地区：[1]山东大学光学系 [2]山东工业大学

出　　处：《激光杂志》1988年第3期135-140,共6页Laser Journal

摘　　要：本文讨论了强激光瞬间作用金属表面后金属表层特性的改变。分析和实验得出,通过控制入射激光功率密度和作用时间可以实现相变硬化及快速熔化——凝固处理。指出利用脉冲激光并选择适当的工艺参数可以有效地对金属工件进行表面处理以改进其硬度、耐磨及耐腐蚀等性能。This paper deals with the characteristic changes of metal surface after transient acting by strong laser. The phase transformation hardening and fast melting-solidification by controlling power intensity and shocking-time of laser pulse have been analysed.it is pointed out that after surfacetreating under proper conditions of laser pulse parameters, the hardness, wear resistance and corrosion reSistance etc. can be improved.

关 键 词：金属表面 强激光 机理研究 特性 表层 间作 激光功率密度 快速熔化 表面处理 金属工件 

分 类 号：TN241[电子电信—物理电子学] TG178[金属学及工艺—金属表面处理]