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采用机械搅拌与高能超声处理法制备了纳米SiCp增强AZ91D镁基复合材料(n-SiCp/AZ91D),研究了n-SiCp含量及温度对材料摩擦磨损性能的影响。结果表明,AZ91D镁合金中加入n-SiCp能够改善材料的耐磨损性能,并随着n-SiCp添加量的增加,耐磨损性逐渐增加。基体和复合材料在室温至300℃范围内,经历了从轻微摩擦磨损到严重磨损的转变。复合材料从轻微摩擦磨损到严重磨损的转变温度比基体提高了50℃,另外,复合材料还表现出较好的耐高温磨损性能。
The nano-SiCp reinforced AZ91D magnesium matrix composite (n-SiCp / AZ91D) was prepared by mechanical stirring and high-energy ultrasonic treatment. The effect of n-SiCp content and temperature on the friction and wear properties of the composite was investigated. The results show that the addition of n-SiCp to AZ91D magnesium alloy can improve the wear resistance of the material, and the wear resistance increases with the increase of n-SiCp addition. The matrix and the composite undergo a transition from slight frictional wear to severe wear at room temperature to 300 ° C. The transition temperature of the composite from mild to severe wear increased by 50 ℃ than that of the matrix. In addition, the composites also showed good high temperature wear resistance.