表面处理对SiC复合高锰钢组织与耐磨性的影响
Effect of Surface Treatment on Microstructure and Wear Resistance of SiCP /Mn13 Composite
刘 可, 马幼平, 王成辉, 李兴彬
点击：3350次 下载：0次
作者单位：(西安建筑科技大学 冶金工程学院, 陕西 西安 710055)
中文关键字：铸渗； 表面处理； 复合材料； 耐磨性
英文关键字：cast penetration; surface treatment; composites; wear resistance
中文摘要：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。
英文摘要：SiCP/Mn13 composite was prepared by vacuum-evaporation pattern casting (V-EPC) method, the effects of SiC particulates surface treatment on microstructure and wear resistance of the composite were studied. The results show that, the decomposition of SiC particles wrapped with the three kinds of alloy powder (Al, Si, Ti) during casting-penetration process reduces to 60%, 25%, 15% respectively. The morphology and distribution of the graphite precipitated during solidification were also changed. The wear resistance of these specimens increases variously, and the largest one is 2 times higher than high manganese steel reinforced by SiC particles without any surface treatment.