简介概要

Laser multi-layer cladding of Mg-based alloys

来源期刊:中国有色金属学报(英文版)2003年第1期

论文作者:陈长军 王东生 王茂才

文章页码:78 - 82

Key words:laser multi-layer cladding; Mg-based alloys; microstructure; repairing

Abstract: By laser multilayer cladding using a pulsed Nd-YAG irradiation the thickness of the cladding zone Mg-based alloys(ZM2 and ZM5) can reach about 1.0mm.The microstructure of the substrate and the cladding zone was studied using optical microscope, scanning electron microscopy(SEM), Xray diffractometry(XRD) and micro hardness analysis. It is observed that constituent of ZM5 alloy is δ+Mg17Al12, that of ZM2 alloy is α+MgZn+Mg9Ce. That of cladding layer ZM2 alloy(L-ZM2) is Mg+Mg2Zn11+MgCe; while that of the cladding layer ZM5 alloy(L-ZM5) is Mg+Mg32(Al, Zn)49. The hardness of the cladding area can be increased to values above HV127. Very fine uniform microstructure and the produced new phases of nanometer/sub-micrometer order were obtained. Now, many repaired Mg-based alloy components have been passed by flying test in outside field.

详情信息展示

 

<上一页 1 下一页 >

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 主办 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:(署)网出证(湘)字第028号   湘ICP备09001153号