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以添加0-20%体积分数的SiC颗粒增强铜基复合材料为研究对象,利用金相显微镜、扫描电镜、显微硬度和腐蚀试验等测试技术及实验手段,利用宏微观结合的方法进行组织与性能分析。结果表明,SiC颗粒随添加量的增加而明显增多且变密集,但总体分布较均匀,和基体结合较好。试样的显微硬度从21.1HV30逐渐增加到100.1 HV30。但随SiC颗粒的增加,材料密度下降,多孔率增加,导致抗腐蚀能力有所降低。
With the addition of 0-20% SiC particle reinforced copper matrix composites as the research object, the microstructure and mechanical properties of the composites were investigated by means of metallographic microscope, scanning electron microscopy, microhardness and corrosion testing and experimental methods, Performance analysis. The results show that the SiC particles obviously increase and densify with the increase of additive amount, but the distribution of SiC particles is more uniform and the bond with matrix is better. The microhardness of the sample gradually increased from 21.1 HV30 to 100.1 HV30. However, with the increase of SiC particles, the material density decreases and the porosity increases, resulting in a decrease of corrosion resistance.