Microstructure-property studies in friction-stir welded, Thixomolded magnesium alloy AM60

被引：58

作者：

Esparza, JA ^{[1
]}

Davis, WC ^{[1
]}

Murr, LE ^{[1
]}

机构：

[1] Univ Texas, Dept Met & Mat Engn, El Paso, TX 79968 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2003年 / 38卷 / 05期

关键词：

D O I：

10.1023/A:1022321107957

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thixomolded* magnesium alloy AM60 plates joined by friction-stir welding were observed to be as strong or stronger than the unwelded base material. The thixotropic microstructures of the as-molded plates consisted of either 3% or 18% primary solid fraction of alpha-Mg globules (similar to45 mum average size) in a eutectic mixture consisting of alpha-Mg grains (similar to10 mum) surrounded by Mg17Al12 intermetallic grains in the alpha-Mg grain boundaries (having an average size of 1-2 mum). This complex, composite microstructure became a homogeneous (Mg + 6% Al)), recrystallized, equiaxed grain (10-15 mum) microstructure in the weld zone. (C) 2003 Kluwer Academic Publishers.

引用

页码：941 / 952

页数：12

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