Evaluation of the Effectiveness of Representative Methods for Determining Young's Modulus and Hardness from Instrumented Indentation Data
文献类型：期刊论文
| 作者 | Ma DJ; Zhang TH(张泰华) ; Ong CW
|
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2006 |
| 卷号 | 21期号:1页码:225-233 |
| 通讯作者邮箱 | apacwong@inet.polyu.edu.hk |
| 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 | The effectiveness of Oliver & Pharr's (O&P's) method, Cheng & Cheng's (C&C's) method, and a new method developed by our group for estimating Young's modulus and hardness based on instrumented indentation was evaluated for the case of yield stress to reduced Young's modulus ratio (sigma(y)/E-r) >= 4.55 x 10(-4) and hardening coefficient (n) <= 0.45. Dimensional theorem and finite element simulations were applied to produce reference results for this purpose. Both O&P's and C&C's methods overestimated the Young's modulus under some conditions, whereas the error can be controlled within +/- 16% if the formulation was modified with appropriate correction functions. Similar modification was not introduced to our method for determining Young's modulus, while the maximum error of results was around +/- 13%. The errors of hardness values obtained from all the three methods could be even larger and were irreducible with any correction scheme. It is therefore suggested that when hardness values of different materials are concerned, relative comparison of the data obtained from a single standard measurement technique would be more practically useful. It is noted that the ranges of error derived from the analysis could be different if different ranges of material parameters sigma(y)/E-r and n are considered. |
| 学科主题 | 力学 |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | ELASTIC-MODULUS ; CONICAL INDENTATION ; SHARP-INDENTATION ; PLASTIC PROPERTIES ; CONTACT AREA ; LOAD ; NANOINDENTATION ; INDENTERS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000234582900029 |
| 公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/15834]  |
| 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,Zhang TH,Ong CW. Evaluation of the Effectiveness of Representative Methods for Determining Young's Modulus and Hardness from Instrumented Indentation Data[J]. Journal of Materials Research,2006,21(1):225-233. |
| APA | Ma DJ,张泰华,&Ong CW.(2006).Evaluation of the Effectiveness of Representative Methods for Determining Young's Modulus and Hardness from Instrumented Indentation Data.Journal of Materials Research,21(1),225-233. |
| MLA | Ma DJ,et al."Evaluation of the Effectiveness of Representative Methods for Determining Young's Modulus and Hardness from Instrumented Indentation Data".Journal of Materials Research 21.1(2006):225-233. |
入库方式： OAI收割
来源：力学研究所
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