An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip
文献类型：期刊论文
| 作者 | Ma DJ; Ong CW; Zhang TH(张泰华)
|
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2008 |
| 页码 | 2106-2115 |
| 通讯作者邮箱 | apacwong@inet.polyu.edu.hk |
| 关键词 | Depth-Sensing Indentation Elastic-Modulus Sharp Indentation Elastoplastic Properties Anisotropic Materials Hardness Load Indenter |
| ISSN号 | 0884-2914 |
| 通讯作者 | Ong, CW (reprint author), Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China. |
| 中文摘要 | We previously proposed a method for estimating Young's modulus from instrumented nanoindentation data based on a model assuming that the indenter had a spherical-capped Berkovich geometry to take account of the bluntness effect. The method is now further improved by releasing the constraint on the tip shape, allowing it to have a much broader arbitrariness to range from a conical-tipped shape to a flat-ended shape, whereas the spherical-capped shape is just a special case in between. This method requires two parameters to specify a tip geometry, namely, a volume bluntness ratio V-r and a height bluntness ratio h(r). A set of functional relationships correlating nominal hardness/reduced elastic modulus ratio (H-n/E-r) and elastic work/total work ratio (W-e/W) were established based on dimensional analysis and finite element simulations, with each relationship specified by a set of V-r and h(r). Young's modulus of an indented material can be estimated from these relationships. The method was shown to be valid when applied to S45C carbon steel and 6061 aluminum alloy. |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | DEPTH-SENSING INDENTATION ; ELASTIC-MODULUS ; SHARP INDENTATION ; ELASTOPLASTIC PROPERTIES ; ANISOTROPIC MATERIALS ; HARDNESS ; LOAD ; INDENTER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000258240900010 |
| 公开日期 | 2009-08-03 ; 2009-09-14 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25938]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Ma DJ,Ong CW,Zhang TH. An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip[J]. Journal of Materials Research,2008:2106-2115. |
| APA | Ma DJ,Ong CW,&张泰华.(2008).An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip.Journal of Materials Research,2106-2115. |
| MLA | Ma DJ,et al."An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip".Journal of Materials Research (2008):2106-2115. |
入库方式： OAI收割
来源：力学研究所
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