| On the spherical nanoindentation creep of metallic glassy thin films at room temperature | |
Zhang TH(张泰华) ; Ye JH; Feng YH(冯义辉); Ma Y; Ma, Y (reprint author), Zhejiang Univ Technol, Coll Mech Engn, Inst Micro Nanomech Testing Technol & Applicat, Hangzhou 310014, Zhejiang, Peoples R China.
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| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 2017-02-08 | |
| Volume | 685Pages:294-299 |
| ISSN | 0921-5093 |
| Abstract | Metallic glassy thin films with eight kind of compositions were successfully prepared on Si substrate by magnetron sputtering. The room-temperature creep tests were performed at plastic regions for each sample relying on spherical nanoindetation. The creep deformations were studied by recording the total creep displacement and strain after 2000 s holding. More pronounced creep deformation was observed in the sample with lower glass transition temperature (T-g). Strain rate sensitivity (SRS) was then calculated from the steady-state creep and exhibited a negative correlation with increasing T-g. It is suggested that creep mechanism of the nano-sized metallic glass was T-g-dependent according to the demarcation of SRS values. Based on the obtained SRS shear transformation zone (STZ) size in each sample could be estimated. The results indicated that an STZ involves about 25-60 atoms for the employed eight samples and is strongly tied to T-g. The characteristic of STZ size in metallic glassy thin films was discussed in terms of applied method and deformation modes. |
| Keyword | Nanoindentation Creep Metallic Glassy Film Strain Rate Sensitivity Shear Transformation Zone |
| DOI | 10.1016/j.msea.2017.01.018 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000394190400034 |
| WOS Keyword | SHEAR TRANSFORMATION ZONE ; INDENTATION CREEP ; PLASTIC-FLOW ; DEFORMATION ; BEHAVIOR ; SIZE ; ALLOYS ; VOLUME |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | National Natural Science Foundation of China(11502235 ; 11672356) |
| Department | LNM实验平台 |
| Classification | 一类 |
| Ranking | 3 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/60589 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Ma, Y (reprint author), Zhejiang Univ Technol, Coll Mech Engn, Inst Micro Nanomech Testing Technol & Applicat, Hangzhou 310014, Zhejiang, Peoples R China. |
| Recommended Citation GB/T 7714 | Zhang TH,Ye JH,Feng YH,et al. On the spherical nanoindentation creep of metallic glassy thin films at room temperature[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,685:294-299. |
| APA | 张泰华,Ye JH,冯义辉,Ma Y,&Ma, Y .(2017).On the spherical nanoindentation creep of metallic glassy thin films at room temperature.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,685,294-299. |
| MLA | 张泰华,et al."On the spherical nanoindentation creep of metallic glassy thin films at room temperature".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 685(2017):294-299. |
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| JouAr-2017-012.pdf（726KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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