| 高铬白口铸铁低速重载条件下的干滑动摩擦磨损特性 |
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| 引用本文： | 倪锋,张永振,罗霞,沈百令,龙锐. 高铬白口铸铁低速重载条件下的干滑动摩擦磨损特性[J]. 钢铁研究学报, 2002, 14(3): 52-55 |
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| 作者姓名： | 倪锋 张永振 罗霞 沈百令 龙锐 |
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| 作者单位： | 洛阳工学院材料科学与工程系,河南,洛阳,471039 |
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| 基金项目： | 河南省自然科学基金资助项目 (9940 40 5 0 0 ) |
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| 摘 要： | 研究了不同类型碳化物和不同基体组织的高铬白口铸铁在低速（滑动速度为0.4187～1.0467m/s），重载（接触应力为1～21MPa）条件下与淬火40Cr钢（硬度HRC51～53）配副的干滑动摩擦磨损特性，结果表明，在（Fe,Cr)7C3、（Fe,Cr）3C和（Fe,Cr）33C63种碳化物中，（Fe,Cr）7C3有利于提高高铬白口铸铁的耐磨性，（Fe,Cr）3C有利于降低摩擦系数，共析组织，奥氏体和马氏体3种基体相比，共析组织基体使合金具有较高的摩擦系数，而奥氏体基体合金的耐磨性最好，存在一个临界摩擦应力，当摩擦应力大于此值时，磨损率急剧上升。
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| 关 键 词： | 高铬白口铸铁 干滑动 摩擦系数 耐磨性 临界摩擦应力 |
| 文章编号： | 1001-0963(2002)03-0052-04 |
| 修稿时间： | 2001-07-25 |
Wear Characteristics of High Chromium White Cast Iron under Heavy Load and Low Speed Dry Sliding Friction |
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| NI Feng,ZHANG Yong zhen,LUO Xia,SHEN Bai ling,LONG Rui. Wear Characteristics of High Chromium White Cast Iron under Heavy Load and Low Speed Dry Sliding Friction[J]. Journal of Iron and Steel Research, 2002, 14(3): 52-55 |
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| Authors: | NI Feng ZHANG Yong zhen LUO Xia SHEN Bai ling LONG Rui |
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| Abstract: | The wear characteristics of high chromium white cast iron and quenched 40Cr steel (HRC 51 53) were investigated under heavy load (1 21 MPa) and low speed (0.418 7 1.046 7 m/s) dry sliding friction. The high chromium white cast iron with three kinds of carbides and three kinds of matrix was tested. The results indicated that (Fe,Cr) 7C 3 is favorable to wear resistance and (Fe,Cr) 3C can lower the friction factor. The alloy with eutectoid matrix gives high friction factor and that with austenite has the best wear resistance. There is a critical friction stress, over which the wear rate rises quickly. |
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| Keywords: | high chromium white cast iron dry sliding friction factor wear resistance critical friction stress |
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