采用HCl酸洗的表面处理工艺对α-SiC颗粒进行处理,利用真空热压法制备以SiC为增强体的铝硅基复合材料,研究了表面处理态与原始态的SiC对该复合材料微观组织、抗拉强度的影响。结果表明,经表面处理的SiC增强铝硅复合材料界面结合良好,空洞减少,界面结合强度增强,该复合材料抗拉强度明显提高。 The α-SiC particles were treated by pickling with hydrochloric acid, and the Al-Si matrix composites reinforced with SiC were prepared by vacuum hot pressing. The effects of surface-treated and original SiC on the microstructure of the composites , The impact of tensile strength. The results show that the interface of the SiC-reinforced Al-Si composites is well bonded, the cavities are reduced and the interfacial bonding strength is enhanced. The tensile strength of the composites increases obviously.