Microstructure and mechanical properties of as aged Mg-3Sn-1Al and Mg-3Sn-2Zn-1Al alloy

被引：9

作者：

Chen, Y. ^{[1
,2
]}

Jin, L. ^{[1
]}

Li, W. ^{[1
]}

Song, Y. ^{[1
]}

Hao, L. ^{[1
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

[2] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2015年 / 31卷 / 01期

关键词：

Mg-Sn-Zn-Al alloy; Mg2Sn; T5; microstructure; mechanical property; MAGNESIUM ALLOY; AS-CAST; HARDENING RESPONSE; TENSILE PROPERTIES; GRAIN-REFINEMENT; CREEP-BEHAVIOR; ZN; AL; ADDITIONS; SOLUTE;

D O I：

10.1179/1743284714Y.0000000607

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effect of Zn on the microstructure, age hardening response and mechanical properties of Mg-3Sn- 1Al alloy which is immediately aged at 180 degrees C after extrusion process (T5) was investigated. It was found that the Zn can refine the microstructure, remarkably improve the aging response with the peak hardness increases to 75 HV and the time to peak hardness reduces from similar to 110 to similar to 60 h, which is attributed to the solid solution hardening of Al, Zn and an amount of finer Mg2Sn precipitates. The as aged Mg-3Sn-2Zn-1Al alloy exhibits better mechanical property at room temperature or 150 degrees C than that of Mg-3Sn-1Al alloy, which is ascribed to the fine grained microstructure and thermally stable Mg2Sn particles dispersed at grain boundaries and in the matrix.

引用

页码：73 / 78

页数：6

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