| 降低渗硼层本质脆性对其磨粒磨损特性的影响 |
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| 引用本文： | 许斌,宋月鹏,冯承明. 降低渗硼层本质脆性对其磨粒磨损特性的影响[J]. 中国机械工程, 2001, 12(10): 1194-1197 |
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| 作者姓名： | 许斌 宋月鹏 冯承明 |
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| 作者单位： | [1]山东建筑工程学院材料科学与工程系，济南市250014 [2]山东农业大学机械与电子学院，山东省泰安市271018 |
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| 基金项目： | 山东省自然科学基金资助项目(Y98F11092) |
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| 摘 要： | 利用MM-200型磨损试验机，研究了通过固体硼铬稀土共渗降低渗硼层本质脆性对其磨粒磨损特性的影响。并进行了应用试验，同时利用固体与分子经验电子理论对含铬Fe2B相的价电子结构进行了分析，结果表明，脆性的下降可使渗硼层的耐磨粒磨损性能提高0.27-0.80倍，而且实际应用效果显著，铬原子的溶入改变了Fe2B相的价电子结构，从而使渗硼层的本质脆性降低。
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| 关 键 词： | 渗硼层 硼铬稀土共渗 本质脆性 价电子结构 磨粒磨损 农业机械 |
| 文章编号： | 1004-132X(2001)10-1194-04 |
Effect of Decreasing the Eigen-Brittleness of Boride Layer on Its Abrasion Wear Behavior |
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| XU Bin. Effect of Decreasing the Eigen-Brittleness of Boride Layer on Its Abrasion Wear Behavior[J]. China Mechanical Engineering, 2001, 12(10): 1194-1197 |
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| Authors: | XU Bin |
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| Abstract: | The effect of decreasing the eigen-brittleness of boride layer, by pack RE-chrome- boronizing,on its abrasion wear behavior and mechanism was studied in this paper using an MM-200 wear tester and applied tests were completed. The valence electron structure of Cr-containing Fe2B phase was researched on the basis of Yu's empirical electron theory of solids and molecules. The results show that the abrasions wear resistance of the boride layer, when its brittleness dropping, increases 27%~80%, and that the application effects to flat-hammer are notable.The valence electron structure of Cr-containing Fe2B phase can decrease the eigen-brittleness of boride layer. |
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| Keywords: | boride layer RE-chrome-boronizing eigen-brittleness valence electron structure abrasion wear |
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