| 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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| 发表期刊 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 2017-02-08
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| 卷号 | 685页码:294-299 |
| ISSN | 0921-5093
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| 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. |
| 关键词 | Nanoindentation
Creep
Metallic Glassy Film
Strain Rate Sensitivity
Shear Transformation Zone
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| DOI | 10.1016/j.msea.2017.01.018
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000394190400034
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| 关键词[WOS] | SHEAR TRANSFORMATION ZONE
; INDENTATION CREEP
; PLASTIC-FLOW
; DEFORMATION
; BEHAVIOR
; SIZE
; ALLOYS
; VOLUME
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| WOS研究方向 | Science & Technology - Other Topics
; Materials Science
; Metallurgy & Metallurgical Engineering
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| WOS类目 | Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
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| 项目资助者 | National Natural Science Foundation of China(11502235
; 11672356)
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| 课题组名称 | LNM实验平台
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| 论文分区 | 一类
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| 力学所作者排名 | 3
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/60589
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Ma, Y (reprint author), Zhejiang Univ Technol, Coll Mech Engn, Inst Micro Nanomech Testing Technol & Applicat, Hangzhou 310014, Zhejiang, Peoples R China. |
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.
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| 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.
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| 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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