镁合金激光熔凝处理工艺研究  

Study on laser melting process of magnesium alloy

作　　者：赵宇[1] 赵静[1] 陈莉[1] 

机构地区：[1]长春工业大学材料学院

出　　处：《金属热处理》2008年第4期68-71,共4页Heat Treatment of Metals

基　　金：吉林省教育厅资助项目(吉教科合字[2006]第70号)

摘　　要：采用横流CO2激光器,对镁合金进行熔凝处理,采用三因子二次回归正交组合设计计算方法进行试验,优化其工艺参数,讨论了各工艺参数对熔凝区尺寸的影响规律,分析了熔凝区组织性能之间的关系。结果表明,熔凝区晶粒得到细化,镁合金表面的性能得到明显提高。Laser melting on Mg alloy was carried out using the cross-flow CO2 laser. The optimum processing parameters of laser melting were get by using orthogonal design method. The effect of processing parameters on the size of the laser melting zone was discussed, and the relationship of structures and properties of the laser melting zone were analyzed. The results indicate that the grains of the melted layer are refined and the properties of the surface of Mg alloy are obviously improved.

关 键 词：镁合金 激光熔凝 正交设计 组织与性能 

分 类 号：TG166.3[金属学及工艺—热处理] TG156.99[金属学及工艺—金属学]