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通过真空负压实型铸造法(V-EPC法)制备了SiCP/高锰钢基复合材料,探讨了增强相SiC颗粒表面经三种合金粉(Al、Si、Ti)处理对铸渗层组织及复合材料耐磨性的影响。结果表明,SiC颗粒经不同表面处理后,在铸渗过程中分解程度分别降至60%、25%、15%,析出石墨相形态及分布亦有变化;制备的试样耐磨性有不同程度的提高,SiC表面经Ti粉处理后复合试样耐磨性最好,较SiC表面未经处理情况的复合材料试样耐磨性高2倍。
The SiCP / high manganese steel matrix composites were prepared by V-EPC method. The effects of three kinds of alloy powders (Al, Si, Ti) on the surface of the reinforced SiC particles were investigated. And the wear resistance of composite materials. The results show that the SiC particles decompose to 60%, 25% and 15% respectively after being treated by different surface treatments. The morphology and distribution of precipitated graphite also change. The wear resistance of the prepared samples is different , The wear resistance of the composite sample after the Ti powder treatment on the SiC surface is the best, and the wear resistance of the composite sample is 2 times higher than that on the SiC surface without the treatment.