Unusual compressive plasticity of a centimeter-diameter Zr-based bulk metallic glass with high Zr content

被引：35
|
作者：
Li, Y. H. [1 ,2 ]
Zhang, W. [2 ]
Dong, C. [2 ]
Qiang, J. B. [2 ]
Yubuta, K.
Makino, A.
Inoue, A.
机构：
[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Grad Sch, Sendai, Miyagi 9808577, Japan
[2] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 504卷
关键词：
Bulk metallic glass; Mechanical property; Zr-based alloys; Compressive strain; FREE-VOLUME; ALLOYS; MM;
D O I：
10.1016/j.jallcom.2010.02.069
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：
The thermal stability, melting behavior, and glass-forming ability of Zr70Al8Cu22-xNix (x = 3-19 at.%) metallic glasses were investigated. Fully glassy sample with largest critical diameter of 10 mm was obtained for alloy with x = 8.5 in the alloy series, which corresponds to a deep eutectic, largest supercooled liquid region, and largest gamma value. Room temperature compression test revealed that the monolithic Zr70Al8Cu13.5Ni8.5 bulk metallic glass exhibits a high yield strength of 1570 MPa, a Young's modulus of 80 GPa, and a super large plastic strain more than 70%. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：S2 / S5
页数：4
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