On the spherical nanoindentation creep of metallic glassy thin films at room temperature
文献类型：期刊论文
| 作者 | Zhang TH(张泰华) ; Ye JH; Feng YH(冯义辉); Ma Y
|
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2017-02-08 |
| 卷号 | 685页码:294-299 |
| 关键词 | Nanoindentation Creep Metallic glassy film Strain rate sensitivity Shear transformation zone |
| ISSN号 | 0921-5093 |
| 中文摘要 | 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. |
| 类目[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | SHEAR TRANSFORMATION ZONE ; INDENTATION CREEP ; PLASTIC-FLOW ; DEFORMATION ; BEHAVIOR ; SIZE ; ALLOYS ; VOLUME |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000394190400034 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60589]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 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.(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. |
入库方式： OAI收割
来源：力学研究所
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