Room-temperature nanoindentation measurements of La-based bulk metallic glass

被引：12
|
作者：
Jiang, Q. K.
Nie, X. P.
Jiang, J. Z. [1 ]
Deyneka-Dupriez, N.
Fecht, H.-J.
机构：
[1] Zhejiang Univ, Lab New Struct Mat, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
[2] Univ Ulm, Fac Engn, Dept Mat, D-89081 Ulm, Germany
[3] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany
来源：
SCRIPTA MATERIALIA | 2007年 / 57卷 / 02期
基金：
中国国家自然科学基金;
关键词：
metallic glasses; nanoindentation; mechanical properties; rare earth alloys;
D O I：
10.1016/j.scriptamat.2007.03.043
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Deformation behavior of La62Al14(Cu5/6Ag1/6)(14)(Ni0.5Co0.5)(10) (at.%) bulk metallic glass (BMG) was investigated by nanoindentation measurements under ambient conditions. A trend of deformation mode change from homogeneous deformation I to inhomogeneous deformation to homogeneous deformation II transition was illustrated as the loading rate increases from 0.0025 to 1 mN s(-1) for the La62Al14(Cu5/6Ag1/6)(14)(N0.5Co0.5)(10) BMG at room temperature. The mechanism of the loading-rate dependence of plastic deformation behavior for the La-based BMG was discussed based on the shear transformation zone model. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：149 / 152
页数：4
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