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研究了新型反应体系A359 Zr(CO3)2熔体反应法制备的(Al3Zr+Al2O3)p/A359复合材料干滑动磨损性能。结果表明:复合材料的磨损量随着载荷的增大和时间的延长均远小于基体磨损量,由于颗粒的支撑和减磨作用,使得同一条件下复合材料的磨损量随颗粒体积分数的增加而减少;当载荷为98N时,12%(Al3Zr+Al2O3)P/A359复合材料的磨损量为20.2mg,而基体材料的磨损量为54.5mg,复合材料比基体材料耐磨性提高了2.5倍;由磨损表面SEM观察表明,基体A359合金存在严重粘着和变形,表现为粘着磨损和剥层磨损,复合材料的磨损类型表现为磨粒磨损。
The dry sliding wear behavior of (Al3Zr + Al2O3) p / A359 composites prepared by a novel reaction system A359 Zr (CO3) 2 melt reaction was investigated. The results show that the wear amount of the composite decreases with the increase of the load and the extension of time more than the wear amount of the matrix. The wear amount of the composite decreases with the increase of the particle volume fraction due to the support and reduction of the particles. ; When the load is 98N, the wear amount of 12% (Al3Zr + Al2O3) P / A359 composite is 20.2mg, while the wear amount of the matrix material is 54.5mg, the wear resistance of the composite material is 2.5 times higher than that of the matrix material; The SEM observation of the wear surface shows that there is a serious adhesion and deformation of the matrix A359 alloy, showing sticking wear and delamination wear, and the wear type of the composite shows abrasive wear.