| 晶粒尺寸对WC硬质合金刀具材料摩擦磨损性能的影响 |
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| 引用本文： | 张辉,邓建新,李桂玉.晶粒尺寸对WC硬质合金刀具材料摩擦磨损性能的影响[J].工具技术,2010,44(6):9-12. |
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| 作者姓名： | 张辉 邓建新 李桂玉 |
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| 作者单位： | 山东大学 |
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| 基金项目： | 国家自然科学基金资助项目，教育部博士点基金资助项目 |
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| 摘 要： | 研究了三种不同晶粒尺寸的硬质合金材料的摩擦磨损性能,测量了摩擦系数,采用扫描电子显微镜观察分析了硬质合金磨损表面的形貌变化。结果表明,随着滑动速度和载荷的提高,硬质合金的摩擦系数呈下降的趋势;相同条件下,随着晶粒的减小,硬质合金的摩擦系数略有升高。粗晶粒的硬质合金主要磨损机制为WC晶粒脱落造成的磨粒磨损,细晶粒硬质合金磨损机制主要表现为塑性变形。
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| 关 键 词： | 硬质合金 晶粒尺寸 摩擦磨损 |
Effects of WC Grain Size on Friction and Wear Behavior of WC Cemented Carbide Tool Material |
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| Zhang Hui,Deng Jianxin,Li Guiyu.Effects of WC Grain Size on Friction and Wear Behavior of WC Cemented Carbide Tool Material[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),2010,44(6):9-12. |
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| Authors: | Zhang Hui Deng Jianxin Li Guiyu |
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| Affiliation: | Zhang Hui,Deng Jianxin,Li Guiyu Doctoral Candidate,School of Mechanical Engineering,Shandong University,Jinan 250061,China |
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| Abstract: | In this paper the friction and wear behavior of cemented carbide with different WC grain size were investigated by measuring the friction coefficient.The morphological analyses of the worn surface were made by scanning electron microscope.The friction coefficients of cemented carbides decreased with the increase of normal load and sliding speed.Under the same friction condition,the friction coefficient increase slightly with the decrease of the grain size.The main wear mechanism of coarse-grained cemented c... |
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| Keywords: | cemented carbide grain size friction and wear |
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