Effect of Al addition on formation and mechanical properties of Mg-Cu-Gd bulk metallic glass

被引：6
|
作者：
耿家源
孙玉峰
王利国
朱世杰
刘利召
关绍康
机构：
[1] School of Materials Science and Engineering Zhengzhou University
[2] Zhengzhou 450002 China
来源：
Transactions of Nonferrous Metals Society of China | 2007年 / 05期
基金：
中国国家自然科学基金;
关键词：
mg-based bulk metallic glasses; glass forming ability; mechanical properties; plastic strain;
D O I：
暂无
中图分类号：
TG139.8 [];
学科分类号：
080502 ;
摘要：
The effect of partial substitution of Al for Cu on the glass forming ability(GFA) and mechanical properties of Mg65Cu25-xAlxGd10 (x=0, 1, 3 and 5, molar fraction, %) alloys were studied by X-ray diffractometry(XRD), differential scanning calorimetry(DSC) and uniaxial compression test. The result reveals that GFA of the alloys changes slightly with increasing x from 0 to 3, and then abruptly decreases with x increasing up to 5. The plasticity can be greatly improved with appropriate substitution of Cu by Al (3%, molar fraction) in Mg65Cu25Gd10 bulk metallic glass, and the resultant fracture strength, total strain to failure, and plastic strain are 898 MPa, 2.19% and 0.2%, respectively.
引用
收藏
页码：907 / 912
页数：6
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