Ductile Ti-based metallic glass spheres

被引：11

作者：

Huang, Yongjiang ^{[1
,2
]}

He, Fulong ^{[1
]}

Fan, Hongbo ^{[1
]}

Shen, Jun ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Key Lab Microsyst & Microstruct Mfg, Harbin 150001, Peoples R China

来源：

SCRIPTA MATERIALIA | 2012年 / 67卷 / 7-8期

基金：

中国国家自然科学基金;

关键词：

Bulk amorphous alloys; Plasticity; Transmission electron microscopy; TENSILE FRACTURE; DEFORMATION; FLOW;

D O I：

10.1016/j.scriptamat.2012.07.015

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Here the authors have investigated the mechanical responses of Ti40Zr25Ni3Cu12Be20 metallic glassy spheres. Smaller spheres exhibit a near homogeneous deformation behavior, whereas larger spheres display a quasi-brittle feature upon compressive loading. Meanwhile, the nanohardness value decreases with decreasing sample size. The variation in mechanical performance of the glassy spheres of different. sizes is interpreted within the framework of free volume theory. (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：661 / 664

页数：4

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