Mechanical properties of aged Mg-4Y-3RE alloy

被引：2

作者：

Mabuchi, M ^{[1
]}

Chino, Y

Shimojima, K

Hosokawa, H

Yamada, Y

Wen, CE

Iwasaki, H

机构：

[1] Natl Inst Adv Ind Sci & Technol AIST, Inst Struct & Engn Mat, Nagoya, Aichi 4638560, Japan

[2] Himeji Inst Technol, Dept Mat Sci & Engn, Coll Engn, Himeji, Hyogo 6712201, Japan

来源：

MAGNESIUM ALLOYS 2003, PTS 1 AND 2 | 2003年 / 419-4卷

关键词：

magnesium alloy; mechanical properties; grain boundary sliding;

D O I：

10.4028/www.scientific.net/MSF.419-422.479

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper describes tensile properties of a peak-aged Mg-4Y-3RE alloy at room temperature to 823 K with 10(-5)-10(-1) s(-1). The Mg alloy exhibited high strength (> 250 Mpa) at room temperature to 473 K. However, the strength rapidly decreased at 573 K. It is suggested that a large decrease in strength at 573 K is attributed to grain boundary sliding. Also, elongation increased rapidly at 723 - 823 K. This is likely to arise from the relatively high strain rate sensitivity of about 0.3 due to the glide-controlled dislocation creep.

引用

页码：479 / 484

页数：6

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