采用搅拌复合法制备了10%SiC/Al-5Si-Mg,10%SiC/A1-7Si-Mg(体积分数)复合材料,研究了在常规铸造工艺条件下重熔后复合材料中的界面反应.通过透射电镜和能谱分析可知,SiC界面基本上都是单一的SiC/Al及SiC/Si界面,部分界面上有MgAl2O4颗粒相形成,由于基体合金中Si的存在,生成Al4C3的有害界面化学反应得到了抑制.对不同文献中抑制Al4C3产生所需临界Si含量实验测定结果的差异进行了分析.
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