Dynamic shear punching of metallic glass matrix composites

被引：10

作者：

Qiao, J. W. ^{[1
,2
]}

Ye, H. Y. ^{[1
]}

Yang, H. J. ^{[3
]}

Liang, W. ^{[1
,2
]}

Xu, B. S. ^{[1
,2
]}

Liaw, P. K. ^{[4
]}

Chen, M. W. ^{[5
]}

机构：

[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China

[2] Taiyuan Univ Technol, Minist Educ, Key Lab Interface Sci & Engn Adv Mat, Taiyuan 030024, Shanxi, Peoples R China

[3] Taiyuan Univ Technol, Res Inst Surface Engn, Taiyuan 030024, Shanxi, Peoples R China

[4] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[5] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

INTERMETALLICS | 2013年 / 36卷

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

Glasses; metallic; Plastic deformation mechanism; Plastic forming; cold; Mechanical properties; theory; AMORPHOUS-ALLOYS; DEFORMATION; LOCALIZATION; BEHAVIORS; TOUGHNESS; STRENGTH; FLOW;

D O I：

10.1016/j.intermet.2012.12.016

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：

Dynamic shear punching is employed to process Zr36.6Ti31.4Nb7Cu5.9Be19.1 metallic glass matrix composites. A brittle fracture dominates during punchforming, and no macroscopic cracks or ruffles can be found, indicative of a good surface finish. The softening instability for metallic glasses happens once the yielding is available, avoiding the existence of shear bands and achieving smooth surfaces. No crystallization is accompanied in the heavy deformation zones during dynamic shear punching. The thickness of punched sheets for various BMG systems is highly dependent on the shear strengths. Furthermore, it is deduced that larger glass-transition temperatures of BMGs correspond to the thinner punched sheets, which provides a theoretical guidance to rapidly process metallic glass sheets. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.

引用

页码：31 / 35

页数：5

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