Ternary Sm-Al-Co bulk metallic glass with high glass-forming ability

被引：7
作者：
Guo, Jing
Bian, Xiufang [1 ]
Meng, Qingge
Zhao, Yan
Li, Xuelian
Zhang, Shijiao
机构：
[1] Shandong Univ, Minist Educ, Key Lab Liquid Struct & Hered Mat, Jinan 250061, Peoples R China
[2] Shanghai Jiao Tong Univ, Dept Mat Sci & Engn, Shanghai 200030, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 431卷 / 1-2期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
bulk metallic glass; glass-forming ability; mixing enthalpy; THERMAL-STABILITY; AMORPHOUS-ALLOYS; FE; NI; TRANSITION; SOFT; TM;
D O I：
10.1016/j.jallcom.2006.05.072
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ternary Sm55Al25Co20 alloy has been cast into full glassy rod up to at least 4 mm in diameter. Compared with the previously reported quinary Sm-based bulk metallic glass (BMG), the glass-forming ability (GFA) and the thermal stability ability of the ternary Sm55Al25Co20 BMG are obviously enhanced. The origin of the Sm55Al25Co20 alloy with less components exhibiting higher GFA is discussed, and it is demonstrated that the large negative mixing enthalpy is predominantly responsible for this feature of Sm55Al25Co20 alloy. (c) 2006 Published by Elsevier B.V.
引用
收藏
页码：167 / 170
页数：4
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