| Abnormal softening of Ti-metallic glasses during nanosecond laser shock peening | |
Li YS(李炎森)1,3 ; Zhang K(张坤)1,3; Wang Y(王洋)1,3; Tang WQ(唐伟奇)1,3; Zhang YT(张亚婷)1,3; Wei BC(魏炳忱)1,2,3; Hu Z(胡铮)4
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| Corresponding Author | Zhang, Kun([email protected]) ; Wei, Bingchen([email protected]) |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 2020-01-31 | |
| Volume | 773Pages:6 |
| ISSN | 0921-5093 |
| Abstract | Nanosecond laser shock peening (NLSP) has been proved to be an effective way to enhance the mechanical properties of metallic components through modifying the surface microstructures. However, the micromechanism of structure and property fluctuations induced by shock wave propagation is still limited due to the intrinsic defects in crystalline materials. Here, NLSP treatment has been performed into the Ti-metallic glasses. Owing to the absence of dislocations, grain boundary and phase segregation, the structural signals caused by the shock wave could come into sight. According to grid nanoindentation results, the shock-affected region can be divided into three sections: (I) the rapid softening region, (II) the recovery region and (III) the matrix region. The fronted first pop-in event and the reduced hardness found in the subsurface region provide clear evidence of the release wave-induced structural rearrangement. The abnormal change of the average volume of the shear transformation zone (STZ) could be explained by a two-step transformation mechanism, due to the fluctuations of the "weak spot" induced by the release stress wave. By means of these results, this work provides an opportunity to shed light on the common laser-solid interaction. |
| Keyword | Laser shock wave Metallic glass Grid nanoindentation |
| DOI | 10.1016/j.msea.2019.138844 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000513985200003 |
| WOS Keyword | SHEAR BANDS ; RESIDUAL-STRESS ; NANOINDENTATION ; COMPRESSION ; ALLOY ; REJUVENATION ; DEFORMATION ; PLASTICITY ; TI-6AL-4V ; BEHAVIOR |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Project | National Natural Science Foundation of China[51401028] ; National Natural Science Foundation of China[51271193] ; National Natural Science Foundation of China[11402277] ; National Natural Science Foundation of China[11790292] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040303] ; Innovation Program[237099000000170004] |
| Funding Organization | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Innovation Program |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Zhang, Kun ; Wei, Bingchen |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/81605 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.China North Vehicle Res Inst, Sci & Technol Vehicle Transmiss Lab, Beijing 100072, Peoples R China |
| Recommended Citation GB/T 7714 | Li YS,Zhang K,Wang Y,et al. Abnormal softening of Ti-metallic glasses during nanosecond laser shock peening[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,773:6.Rp_Au:Zhang, Kun, Wei, Bingchen |
| APA | 李炎森.,张坤.,王洋.,唐伟奇.,张亚婷.,...&胡铮.(2020).Abnormal softening of Ti-metallic glasses during nanosecond laser shock peening.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,773,6. |
| MLA | 李炎森,et al."Abnormal softening of Ti-metallic glasses during nanosecond laser shock peening".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 773(2020):6. |
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| Jp2020011A.pdf（1751KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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