Heat resistance of Mg-Zn-Al-Ca alloy castings

被引：35

作者：

Anyanwu, IA

Kamado, S

Honda, T

Kojima, Y

Takeda, S

Ishida, T

机构：

[1] Nagaoka Univ Technol, Dept Mech Engn, Nagaoka, Niigata 9402188, Japan

[2] Ahresty Corp, Magnesium Mfg Div, Mfg Sect, Itabashi Ku, Tokyo, Japan

来源：

MAGNESIUM ALLOYS 2000 | 2000年 / 350-3卷

关键词：

creep; heat resistance; Mg alloy casting; Mg-32(Al; Zn)(49); compound;

D O I：

10.4028/www.scientific.net/MSF.350-351.73

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New Mg-Zn-Al-Ca based alloys are evaluated for possible application at elevated temperatures. The as-cast microstructures of these alloys show that the amount of eutectic compounds increases with an increase in Zn+Al content, and the compounds are found to be mainly Mg-32(Al,Zn)(49) or MgZn. High temperature tensile strength and 0.2% proof strength increase with an increase in the amount of compounds. The creep properties of the alloys are far superior to those of conventional die-cast AZ91D alloy. However, the presence of soft Mg17Al12 compound deteriorates the creep properties of high Al containing alloys.

引用

页码：73 / 78

页数：6