Development of heat resistant magnesium alloys for automotive powertrain parts

被引：0

作者：

Kamado, S ^{[1
]}

Anyanwu, IA ^{[1
]}

Nozawa, S ^{[1
]}

Kojima, Y ^{[1
]}

Takeda, S ^{[1
]}

Ishida, T ^{[1
]}

机构：

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

来源：

PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II | 2001年

关键词：

MgZn-Al-RE alloys; diecasting; automotive powertrain part; microstructure; heat resistance; creep property; hot tearing; solidification range;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rare earth elements (RE) of 1 to 3mass% in the form of mischmetal are added to Mg-Al-Zn-Ca alloys in order to improve their heat resistance. Furthermore, Zn content was varied in order to suppress hot tearing that occurs during diecasting. Increase in RE content leads to increase in the amount of acicular Al-RE compound, resulting in improvement of heat resistance. Addition of large amount of Zinc to the alloys results in the formation of an intermetallic compound that crystallizes at low temperature, and consequently, fluidity is improved, but hot tearing occurs during diecasting of products with a complex shape. One of the alloys designed from the above results, Mg-0.5%Zn-6%Al-1%Ca-3%RE, has good diecastability and comparable heat resistance with the conventional aluminum alloy, ADC12, used for diecasting of automotive powertrain parts.

引用

页码：1175 / 1178

页数：4

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