| 纳米压痕实验微米级深度硬度下降现象的研究(英文) |
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| 引用本文： | 李敏,陈伟民.纳米压痕实验微米级深度硬度下降现象的研究(英文)[J].中国航空学报,2009,22(1):43-48. |
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| 作者姓名： | 李敏 陈伟民 |
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| 作者单位： | Li Min(School of Aeronautics Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China);Chen Weimin(Division of Engineering Science, Institute of Mechanics, Chinese Academy of Science, Beijing 100080, China) |
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| 基金项目： | National Natural Science Foundation of China (10772183, 10532070) |
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| 摘 要： | 本文针对均匀材料微米级压痕深度,分析接触深度、接触面积、载荷以及加载时间几种因素对实验数据的影响,结合有限元数值模拟,说明压头几何缺陷、接触深度与接触面积的处理并不是造成微米级压痕硬度随压深增大而下降的主要原因,最可能的原因是材料的蠕变特性。进行了不同最大压深实验显示连续刚度法(CSM)将强化蠕变特性对硬度曲线的影响,证明造成该现象的重要原因是纳米压痕实验的实验方法问题。
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| 收稿时间： | 3 June 2008 |
Factors Resulting in Micron Indentation Hardness Descending in Indentation Tests |
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| Li Min a,Chen Weimin b,a School of Aeronautics Science , Engineering,Beijing University of Aeronautics , Astronautics,Beijing ,China b Division of Engineering Science.Factors Resulting in Micron Indentation Hardness Descending in Indentation Tests[J].Chinese Journal of Aeronautics,2009,22(1):43-48. |
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| Authors: | Li Min a Chen Weimin b a School of Aeronautics Science Engineering Beijing University of Aeronautics Astronautics Beijing China b Division of Engineering Science |
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| Institution: | Li Min a,Chen Weimin b,a School of Aeronautics Science , Engineering,Beijing University of Aeronautics , Astronautics,Beijing 100191,China b Division of Engineering Science,Institute of Mechanics,Chinese Academy of Science,Beijing 100080,China |
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| Abstract: | Some factors that affect the experimental results in nanoindentation tests such as the contact depth,contact area,load and loading duration are analyzed in this article. Combining with the results of finite element numerical simulation,we find that the creep property of the tested material is one of the important factors causing the micron indentation hardness descending with the increase of indentation depth. The analysis of experimental results with different indentation depths demonstrates that the hardn... |
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| Keywords: | nanoindentation hardness indentation size effect |
| 本文献已被 CNKI 万方数据 ScienceDirect 等数据库收录！ |
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