| 碳纤维质量分数对Al2O3弥散强化铜复合材料的载流摩擦磨损性能影响 |
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| 引用本文： | 温毅博,上官宝,张永振,宋晨飞,杨正海.碳纤维质量分数对Al2O3弥散强化铜复合材料的载流摩擦磨损性能影响[J].粉末冶金技术,2018,36(3):177-181. |
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| 作者姓名： | 温毅博 上官宝 张永振 宋晨飞 杨正海 |
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| 作者单位： | 1.河南科技大学材料科学与工程学院, 洛阳 471023 |
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| 基金项目： | 国家自然科学基金资助项目51375147国家自然科学基金资助项目51405134河南省自然科学基金资助项目162300410091 |
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| 摘 要： | 通过内氧化法制作出一种Al2O3弥散强化铜-碳纤维复合材料，研究了不同碳纤维质量分数对材料载流摩擦磨损性能的影响。结果表明，碳纤维的加入会影响材料的力学性能，明显降低弥散强化铜材料的摩擦系数和磨损量，提升材料的载流稳定性和载流效率。随着碳纤维质量分数的升高，材料的磨损机制由粘着磨损、熔融堆积变为粘着磨损；随着碳纤维质量分数的进一步增加，材料的磨损形式变为轻微的磨粒磨损，说明碳纤维能够在载流摩擦中起到良好的润滑作用。
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| 关 键 词： | 内氧化法 弥散强化铜 碳纤维 载流 摩擦磨损性能分类 |
| 收稿时间： | 2017-10-12 |
Effects of carbonfiber content by mass on current-carrying fiction and wear properties of Al2O3 dispersion strengthened copper composites |
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| Affiliation: | 1.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China2.National Engineering Laboratory for Bearing Tribology, Henan University of Science and Technology, Luoyang 471023, China |
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| Abstract: | Al2O3 dispersion strengthened copper-carbon fiber composite was prepared by internal oxidation method. The influence of carbon fiber content by mass on the current-carrying friction and wear properties of composites was investigated. The results demonstrate that, the carbon fiber has the effect on the mechanical properties of composites, reduces the friction coefficient and wear rate obviously, and enhances the stability and current-carrying efficiency of composites. With the increase of carbon fiber content by mass, the wear mechanism changes from adhesive wear and fused deposition into adhesive wear. With a further increase of carbon fiber content by mass, the slight abrasive wear becomes the main wear mechanism, which shows that the carbon fiber plays a good lubrication role in current-carrying friction. |
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