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首页> 外文期刊>Journal of Materials Engineering and Performance >Dry sliding wear behavior of Al 2219/SiCp-Gr hybrid metal matrix composites
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Dry sliding wear behavior of Al 2219/SiCp-Gr hybrid metal matrix composites

机译：Al 2219 / SiCp-Gr杂化金属基复合材料的干滑动磨损行为

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摘要

The dry sliding wear behavior of Al 2219 alloy and Al 2219/SiCp/Gr hybrid composites are investigated under similar conditions. The composites are fabricated using the liquid metallurgy technique. The dry sliding wear test is carried out for sliding speeds up to 6 m/s and for normal loads up to 60 N using a pin on disc apparatus. It is found that the addition of SiCp and graphite reinforcements increases the wear resistance of the composites. The wear rate decreases with the increase in SiCp reinforcement content. As speed increases, the wear rate decreases initially and then increases. The wear rate increases with the increase in load. Scanning electron microscopy micrographs of the worn surface are used to predict the nature of the wear mechanism. Abrasion is the principle wear mechanism for the composites at low sliding speeds and loads. At higher loads, the wear mechanism changes to delamination.
机译：在相似的条件下研究了Al 2219合金和Al 2219 / SiCp / Gr杂化复合材料的干滑动磨损行为。使用液体冶金技术制造复合材料。使用圆盘装置上的销进行干式滑动磨损测试，以达到最高6 m / s的滑动速度和最高60 N的正常负载。发现添加SiCp和石墨增强材料可以提高复合材料的耐磨性。磨损率随SiCp增强含量的增加而降低。随着速度的增加，磨损率先降低然后增加。磨损率随着负载的增加而增加。磨损表面的扫描电子显微镜显微照片用于预测磨损机理的性质。磨损是复合材料在低滑动速度和低载荷下的主要磨损机理。在较高的负载下，磨损机制变为分层。

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