| Yield strength and yield strain of metallic glasses and their correlations with glass transition temperature | |
| Qu, R. T.; Liu, Z. Q.; Wang, R. F.; Zhang, Z. F.; zhfzhang@imr.ac.cn | |
| 2015 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 637Pages:44-54 |
| Abstract | Strength should be the most outstanding mechanical property for metallic glasses (MGs). Here we analyze the strengths of MGs with more than 300 compositions in similar to 30 alloy systems covering nearly all strength levels, ranging from 0.3 GPa to 6 GPa. With these abundant experimental data available, we find that the yield strain is not always constant but depends on glass transition temperature, T-g, ranging from 1% to 2.5% for normal strain and from 1.2% to 3.4% for shear strain. This can be well explained by assuming an equivalent energy barrier for yielding and glass transition. Relations derived based on this assumption show that MGs with high T-g may yield with larger critical strain and higher strength, implying that high elasticity, high strength and high thermostability can be synchronously achieved for MGs. (C) 2015 Elsevier B.V. All rights reserved. |
| description.department | [qu, r. t. ; liu, z. q. ; wang, r. f. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china |
| Keyword | Metallic Glass Yield Strength Yield Strain Glass Transition Temperature Shear Transformation Zone |
| Funding Organization | National Natural Science Foundation of China (NSFC) [51331007, 51301174]; IMR SYNL-T.S. Ke Research Fellowship; China Postdoctoral Science Foundation [2014M561263] |
| Indexed By | sci |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/75246 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | zhfzhang@imr.ac.cn |
| Recommended Citation GB/T 7714 | Qu, R. T.,Liu, Z. Q.,Wang, R. F.,et al. Yield strength and yield strain of metallic glasses and their correlations with glass transition temperature[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2015,637:44-54. |
| APA | Qu, R. T.,Liu, Z. Q.,Wang, R. F.,Zhang, Z. F.,&zhfzhang@imr.ac.cn.(2015).Yield strength and yield strain of metallic glasses and their correlations with glass transition temperature.JOURNAL OF ALLOYS AND COMPOUNDS,637,44-54. |
| MLA | Qu, R. T.,et al."Yield strength and yield strain of metallic glasses and their correlations with glass transition temperature".JOURNAL OF ALLOYS AND COMPOUNDS 637(2015):44-54. |
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