| Effect of alloying oxygen on the microstructure and mechanical properties of Zr-based bulk metallic glass | |
| Zhou, W. H.1,2; Duan, F. H.1; Meng, Y. H.1,2; Zheng, C. C.1,3; Chen, H. M.3; Huang, A. G.4; Wang, Y. X.1; Li, Y.1 | |
| Corresponding Author | Wang, Y. X.(yinxiaowang@imr.ac.cn) ; Li, Y.(liyi@imr.ac.cn) |
| 2021-11-01 | |
| Source Publication | ACTA MATERIALIA
 |
| ISSN | 1359-6454 |
| Volume | 220Pages:12 |
| Abstract | Due to the high solubility limit of oxygen in Zr, dissolution of oxygen in the Zr-based alloys is unavoidable. However, as an alloying element, the effect of oxygen on the microstructure and mechanical properties of monolithic Zr-based bulk metallic glasses (BMGs) is rarely reported. Here, we systematically investigated the evolution of microstructure and mechanical properties of monolithic Zr61Cu25Al12Ti2 BMGs with alloying oxygen content ranging from 650 at. ppm to 5600 at. ppm. With increasing oxygen content from 650 at. ppm to 3500 at. ppm, the compressive plasticity only decreased slightly, from 2.00 +/- 0.85% to 1.60 +/- 0.91%; however, it plunged to 0.77 +/- 0.33% when the oxygen content was further increased to 5600 at. ppm. The threshold oxygen content level for the ductile-brittle transition was revealed at 3500 at. ppm, and the embrittlement at high oxygen content is closely related with a number of changes in microstructure: sharply increases in the size of shear transformation zone (STZ) and in the degree of local ordering, including the imperfect ordered packing (IOP) atomic clusters and large medium-range ordering (MRO) domains. The above findings not only advance the understanding of the effect of alloying oxygen on the microstructure and mechanical properties, but also help to design Zr-based BMGs with excellent performance, promoting their wider commercial application. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Bulk metallic glass Alloying oxygen Ductile-brittle transition Shear transformation zone Local ordering |
| Funding Organization | Shenyang National Laboratory for Materials Science ; National Natural Science Foundation of China |
| DOI | 10.1016/j.actamat.2021.117345 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Shenyang National Laboratory for Materials Science ; National Natural Science Foundation of China[51801208] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000706782800006 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166574 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Y. X.; Li, Y. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China 4.Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China |
| Recommended Citation GB/T 7714 | Zhou, W. H.,Duan, F. H.,Meng, Y. H.,et al. Effect of alloying oxygen on the microstructure and mechanical properties of Zr-based bulk metallic glass[J]. ACTA MATERIALIA,2021,220:12. |
| APA | Zhou, W. H..,Duan, F. H..,Meng, Y. H..,Zheng, C. C..,Chen, H. M..,...&Li, Y..(2021).Effect of alloying oxygen on the microstructure and mechanical properties of Zr-based bulk metallic glass.ACTA MATERIALIA,220,12. |
| MLA | Zhou, W. H.,et al."Effect of alloying oxygen on the microstructure and mechanical properties of Zr-based bulk metallic glass".ACTA MATERIALIA 220(2021):12. |
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