宏观深度测量压入仪器的研制
DEVELOPMENT OF MACRO-DEPTH-SENSING-INDENTATION INSTRUMENTATION
查看参考文献11篇
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文摘
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基于深度测量压入方法,以材料试验机Instron 5848 Microtester作为加载平台,外接高分辨力位移传感器,设计专用夹具,开发出该材料试验机的宏观压入功能.研究发现:对于机架柔度,无需再进行修正;对于压针接触面积,可用相关的方法计算.采用Oliver-Pharr方法处理测试数据,可获得材料的硬度和弹性模量.为了验证试验的可靠性,选用5种典型金属材料,将宏观压入测试结果与MTS Nano Indenter(R) XP测试结果进行对比,二者基本一致,其分散性均在10%以内.显示了开发传统材料试验机宏观压入测试功能的可行性 |
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其他语种文摘
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Using the Instron 5848 Microtester equipped with an additional displacement sensor and specially designed jigs as the main loading setup, DSI(depth-sensing indentation) tests were performed on typical metallic materials at a macro range. From the indentation data, the hardness and modulus of the materials were directly extrapolated without a frame compliance calibration, with an analysis procedure proposed by Oliver and Pharr. In this analysis, the contact area was calculated for indentation depths ≥6μm from the area function of an ideal indenter tip and for depths <6μm from the area function suggested by Liu and Zhang. A comparison between our results and those from the MTS Nano Indenter? XP shows that the repeatability is ideal, and the scatter of both hardness and modulus values is within 10%. So, it is feasible to develop the DSI capacity for traditional material testing machines. |
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来源
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力学学报
,2007,39(3):350-355 【核心库】
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关键词
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硬度
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弹性模量
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宏观深度测量压入法
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机架柔度
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金属材料
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地址
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1.
中国航天科工六院四十一所, 呼和浩特, 010010
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中国科学院力学研究所, 非线性力学国家重点实验室, 北京, 100080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0459-1879 |
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学科
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力学;金属学与金属工艺 |
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基金
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国家自然科学基金资助项目
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文献收藏号
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CSCD:2812158
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参考文献 共
11
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