| Mo/Al2O3复合材料的耐磨性 |
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| 引用本文： | 余大江,常 春,刘俊涛,姜 江.Mo/Al2O3复合材料的耐磨性[J].摩擦学学报,2009,29(5):442-446. |
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| 作者姓名： | 余大江 常 春 刘俊涛 姜 江 |
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| 作者单位： | 山东大学材料科学与工程学院; |
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| 基金项目： | 山东省自然科学基金资助项目(Y2007F32) |
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| 摘 要： | 无压烧结制备了不同组分的Mo/Al2O3复合材料样品,对样品的磨损行为和磨损机理进行了研究,并用电子探针分析了其磨损形貌.结果表明:Mo/Al2O3复合材料的磨损率随Mo含量的增加呈上升趋势,在30vol.%Mo时出现峰值;摩擦系数随着Mo含量的增加而增大,20vol.%Mo样品的摩擦系数较小;Mo含量不超过60%时,当出现Mo的连续相或者Al2O3的连续相时复合材料表现出较好的耐磨性;Mo含量较低时磨损机理表现为脆性脱落,而Mo含量较高时材料的磨损机理主要为磨粒磨损.
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| 关 键 词： | 钼 氧化铝 磨损率 耐磨性 磨损机理 |
Wear Resistance of Mo/Al2O3 Composites |
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| YUDa-jiang,CHANGChun,LIUJun-tao and JIANGJiang.Wear Resistance of Mo/Al2O3 Composites[J].Tribology,2009,29(5):442-446. |
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| Authors: | YUDa-jiang CHANGChun LIUJun-tao and JIANGJiang |
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| Institution: | School of Materials Science and Engineering;Shandong University;Jinan 250061;China |
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| Abstract: | Mo/Al2O3 composites with various compositions were sintered under pressureless conditions. The wear behavior and wear mechanism of Mo/Al2O3 composites were studied. Results indicated that the wear rates initially increased with the increasing volume fraction of Mo. At 30% to 60%,the wear rates decreased as the volume fraction of Mo increased. A marked increment in wear rate can be found as the volume fraction increased from 60% to 70%. At 10% and 20%,the friction coefficients were low. The composites exhibi... |
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| Keywords: | molybdenum alumina wear rate wear resistance wear mechanisms |
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