摘要
对激光冲击诱导的应力波峰值压力进行了理论估算，提出了激光参数的选择原则。对铝合金２０２４Ｔ６２进行的激光冲击试验的结果表明，经冲击试件的疲劳寿命获得了很大程度的提高。最后对激光冲击强化的机理进行了初步分析。
The pause pressure of laser shock is calculated theoretically.The principle of selecting laser parameters is proposed.The experimental results show that the fatigue life of aluminum alloy 2024 T62 shocked by laser is increased much more.The reasons of increasing fatigue life of metals with laser shock are analysed at last.
关键词
激光冲击
铝合金
疲劳寿命
强化
laser shock processing(LSP),aluminum alloy,fatigue life
