汽车用AZ31镁合金的激光熔覆工艺研究  

Research on Laser Cladding Process of AZ31 Magnesium Alloy for Automobile

作　　者：陈加国[1] 翁秀奇[1] 

机构地区：[1]南京工业职业技术学院机械学院,江苏南京210046

出　　处：《铸造技术》2015年第10期2547-2549,共3页Foundry Technology

基　　金：江苏省精密制造工程技术研究开发中心基金项目(zk14-01-01)

摘　　要：对汽车用AZ31合金进行激光熔覆表面改性处理,通过改变激光熔覆工艺参数的方法研究了基体材料和熔覆层的微观组织、硬度和耐磨性的变化趋势。结果表明,激光熔覆316L涂层的熔覆层硬度得到了极大提高,约为基体硬度的2.7倍。AZ31合金熔覆层的磨损机制主要为磨粒磨损和氧化磨损。The microstructure,hardness and wear resistance of laser cladding coating on AZ31 alloy were studied by changing the process parameters.The results show that the hardness of the cladding coating has been greatly improved,which is about 2.7 times as high as the AZ31 matrix.The main wear mechanism of laser cladding coating on AZ31 alloy is abrasive wear and oxidation wear.

关 键 词：AZ31合金 激光熔覆 涂层 磨损 

分 类 号：U466[机械工程—车辆工程] TG174.4[交通运输工程—载运工具运用工程]