Tailoring shear banding behaviors in high entropy bulk metallic glass by minor Sn addition: A nanoindentation study | |
Du, Yin1; Zhou, Qing1; Ren, Yue1; Kuang, Wangwang1; Han, Weichao1; Zhang, Shang1; Zhai, Haimin2; Wang, Haifeng1 | |
刊名 | Journal of Alloys and Compounds |
2018-09-25 | |
卷号 | 762期号:无页码:422-430 |
关键词 | High entropy bulk metallic glass Nanoindentation Shear bands Sn addition |
ISSN号 | 0925-8388 |
DOI | 10.1016/j.jallcom.2018.05.194 |
英文摘要 | The present work investigated systematically the glass forming ability, the mechanical properties and the shear deformation of the TiZrHfCuBe high entropy bulk metallic glass (HE-BMG) with minor Sn addition. The results revealed that the glass forming ability and the thermal stability are enhanced by minor Sn addition but within a rather limited composition range. A nanoindentation study of the mechanical response in the (TiZrHfCuBe)(1-x)Sn-x, (x = 0, 1, 2 and 3 at. %) HE-BMGs showed that the structural heterogeneity caused by Sn addition resulted in higher hardness, larger number of shear bands and smaller size of shear transformation zone, ascribing to the positive enthalpy of mixing between the Sn and Cu/Be elements. A statistical analysis of the serrated flow revealed that the chemical heterogeneities promote a relatively large population of shear deformation units and lead to multiple nucleation of shear bands. The present work might has implications in establishing the link between minor element addition and structure heterogeneity, which is of critical importance for understanding of shear banding behaviors in BMGs. (C) 2018 Elsevier B.V. All rights reserved. |
资助项目 | Fundamental Research Funds for the Central Universities[3102017HQZZ008] ; Fundamental Research Funds for the Central Universities[G2018KY0304] |
WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE SA |
WOS记录号 | WOS:000436600000053 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.223/handle/2XXMBERH/32448] |
专题 | 省部共建有色金属先进加工与再利用国家重点实验室 |
通讯作者 | Zhou, Qing; Wang, Haifeng |
作者单位 | 1.Northwestern Polytech Univ, Ctr Adv Lubricat & Seal Mat, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Du, Yin,Zhou, Qing,Ren, Yue,et al. Tailoring shear banding behaviors in high entropy bulk metallic glass by minor Sn addition: A nanoindentation study[J]. Journal of Alloys and Compounds,2018,762(无):422-430. |
APA | Du, Yin.,Zhou, Qing.,Ren, Yue.,Kuang, Wangwang.,Han, Weichao.,...&Wang, Haifeng.(2018).Tailoring shear banding behaviors in high entropy bulk metallic glass by minor Sn addition: A nanoindentation study.Journal of Alloys and Compounds,762(无),422-430. |
MLA | Du, Yin,et al."Tailoring shear banding behaviors in high entropy bulk metallic glass by minor Sn addition: A nanoindentation study".Journal of Alloys and Compounds 762.无(2018):422-430. |
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