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采用干摩擦磨损试验机研究了速度和载荷对SiC颗粒增强铝基复合材料的摩擦磨损性能的影响,并对比了SiC颗粒增强铝基复合材料与HT250的耐磨性能。结果表明,在试验条件下,随着载荷的增加,磨损率增加,滑动摩擦系数先下降至最低值(载荷为10MPa)后缓慢增加。滑动摩擦速度对滑动摩擦系数和磨损率有着直接影响,随着速度的升高,材料的磨损率增加。在载荷为20MPa,速度为400r/min的高速高载下,材料容易发生严重的粘着磨损。
The effect of speed and load on the friction and wear properties of SiC particle reinforced aluminum matrix composites was investigated by dry friction and wear tester. The wear resistance of SiC particle reinforced aluminum matrix composites with HT250 was also compared. The results show that under the experimental conditions, the wear rate increases with the increase of the load, and the coefficient of friction decreases slowly to the lowest value (load of 10MPa) and then increases slowly. The sliding friction speed has a direct influence on the sliding friction coefficient and the wear rate, and as the speed increases, the wear rate of the material increases. In the load of 20MPa, speed 400r / min high-speed high-load, the material prone to serious adhesive wear.