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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
ISSN0921-5093
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
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WOS记录号WOS:000245477800063
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被引频次:55[WOS]   [WOS记录]     [WOS相关记录]
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
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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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