Effect of strain rate on compressive behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass | |
J. Zhang; J. M. Park; D. H. Kim; H. S. Kim | |
2007 | |
发表期刊 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
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ISSN | 0921-5093 |
卷号 | 449页码:290-294 |
摘要 | Compressive behavior of Ti45Zr16Ni9Cu10Be20 (numbers indicate at.%) bulk metallic glasses was investigated at strain rates ranging from 10(-4) to 10(-1) s(-1). Little effect of strain rate on the mechanical properties is observed in an amorphous specimen when the strain rates are below 10(-3)s(-1). An appreciable total strain of about 5% is observed and the plastic flow is serrated. However, a positive strain rate dependence of yield strength is found when the strain rate reaches 10(-1) s(-1), which is reported for the first time in metallic glasses under a compressive loading condition. Further, the macroscopic plastic strain distinctly decreases and flow serration vanishes at a high strain rate. A comparison of the significantly different mechanical behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass with other bulk metallic glass systems is also presented. (c) 2006 Elsevier B.V. All rights reserved. |
部门归属 | chungnam natl univ, dept met engn, taejon 305764, south korea. chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. yonsei univ, dept met engn, seoul 120749, south korea.;kim, hs (reprint author), chungnam natl univ, dept met engn, taejon 305764, south korea;hskim@cnu.ac.kr |
关键词 | Bulk Metallic Glasses Shear Band Plastic Deformation Strain Rate Effect Ti-based Alloy Compressive Behavior Serrated Flow Deformation Plasticity Enhancement Temperature Dependence Ductility Strength Alloy |
URL | 查看原文 |
WOS记录号 | WOS:000245477800063 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.imr.ac.cn/handle/321006/34031 |
专题 | 中国科学院金属研究所 |
推荐引用方式 GB/T 7714 | J. Zhang,J. M. Park,D. H. Kim,et al. Effect of strain rate on compressive behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,449:290-294. |
APA | J. Zhang,J. M. Park,D. H. Kim,&H. S. Kim.(2007).Effect of strain rate on compressive behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,449,290-294. |
MLA | J. Zhang,et al."Effect of strain rate on compressive behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 449(2007):290-294. |
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