Evolution of residual stress, free volume, and hardness in the laser shock peened Ti-based metallic glass
文献类型：期刊论文
| 作者 | Wang, Liang2; Wang, Lu2; Nie, Zhihua2; Ren, Yang3; Xue, Yunfei2; Zhu, Ronghua1; Zhang, Haifeng4; Fu, Huameng4 |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2016-12-05 |
| 卷号 | 111页码:473-481 |
| ISSN号 | 0264-1275 |
| 关键词 | Bulk metallic glasses Laser shock peening High energy X-ray diffraction Residual stress Free volume Hardness |
| DOI | 10.1016/j.matdes.2016.09.017 |
| 通讯作者 | Xue, Yunfei(xueyunfei@bit.edu.cn) |
| 英文摘要 | Laser shock peening (LSP) with different cycles was performed on the Ti-based bulk metallic glasses (BMGs). The sub-surface residual stress of the LSPed specimens was measured by high-energy X-ray diffraction (HEXRD) and the near-surface residual stress was measured by scanning electron microscope/focused ion beam (SEM/FIB) instrument. The sub-surface residual stress in the LSP impact direction (about-170MPa) is much lower than that perpendicular to the impact direction (about -350 MPa), exhibiting anisotropy. The depth of the compressive stress zone increases from 400 mu m to 500 mu m with increasing LSP cycles. The highest near-surface residual stress is about -750 MPa. LSP caused the free volume to increase and the maximum increase appeared after the first LSP process. Compared with the hardness (567 +/- 7 HV) of the as-cast BMG, the hardness (590 +/- 9 HV) on the shocked surface shows a hardening effect due to the hardening mechanism of compressive residual stress; and the hardness (420 +/- 9 HV) on the longitudinal section shows a softening effect due to the softening mechanism of free volume. (C) 2016 Elsevier Ltd. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[51471035] ; Beijing Higher Education Young Elite Teacher Project ; Program of One Hundred Talented People of the Chinese Academy of Sciences ; U.S. Department of Energy, Office of Science, Office of Basic Energy Science[DE-AC02-06CH11357] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000386869300056 |
| 资助机构 | National Natural Science Foundation of China ; Beijing Higher Education Young Elite Teacher Project ; Program of One Hundred Talented People of the Chinese Academy of Sciences ; U.S. Department of Energy, Office of Science, Office of Basic Energy Science |
| 源URL | [http://ir.imr.ac.cn/handle/321006/123287]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xue, Yunfei |
| 作者单位 | 1.Tsinghua Univ, Sch Aerosp, AML, Beijing 100084, Peoples R China 2.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 3.Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA 4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Liang,Wang, Lu,Nie, Zhihua,et al. Evolution of residual stress, free volume, and hardness in the laser shock peened Ti-based metallic glass[J]. MATERIALS & DESIGN,2016,111:473-481. |
| APA | Wang, Liang.,Wang, Lu.,Nie, Zhihua.,Ren, Yang.,Xue, Yunfei.,...&Fu, Huameng.(2016).Evolution of residual stress, free volume, and hardness in the laser shock peened Ti-based metallic glass.MATERIALS & DESIGN,111,473-481. |
| MLA | Wang, Liang,et al."Evolution of residual stress, free volume, and hardness in the laser shock peened Ti-based metallic glass".MATERIALS & DESIGN 111(2016):473-481. |
入库方式： OAI收割
来源：金属研究所
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