Strength and ductility of novel Mg-8Sn-1Al-1Zn alloys extruded at different speeds

被引：79

作者：

Cheng, W. L. ^{[2
,3
]}

Kim, H. S. ^{[3
]}

You, B. S. ^{[3
]}

Koo, B. H. ^{[2
]}

Park, S. S. ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Ulsan 689798, South Korea

[2] Changwon Natl Univ, Chang Won 641773, South Korea

[3] Korea Inst Mat Sci, Chang Won 642831, South Korea

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 11期

关键词：

Metals and alloys; Magnesium; Extrusion; DYNAMIC RECRYSTALLIZATION; CONTRACTION TWINS; MAGNESIUM ALLOYS;

D O I：

10.1016/j.matlet.2011.03.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel Mg-8Sn-1Al-1Zn alloy developed for high-speed extrusion was successfully extruded at speeds in a range of 2-10 m/min at a temperature of 250 degrees C. The effect of extrusion speed on the microstructure and tensile properties of the extruded alloys was investigated. Grain size, recrystallization fraction and texture were found to be greatly affected by the extrusion speed, resulting in tensile properties showing lower strength and ductility as the extrusion speed increased. The strength and ductility of the extruded alloys are also discussed in terms of the formation of double twins during the tensile test. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1525 / 1527

页数：3

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