采用高压扭转(High-Pressure Torsion,HPT)工艺制备SiCp-Al基复合材料.通过显微组织的定性分析及样方法的定量计算,深入研究不同工艺参数对SiC颗粒分布的影响规律,结果表明:采用高压扭转法可以直接将8.75％(体积分数)SiC-Al混合粉末制备成金属基复合材料.通过金相分析得出:SiC颗粒在试样不同扭转半径处分布情况具有差异:工艺参数(温度、压力、圈数)对SiC颗粒分布有重要影响,结合样方法对颗粒分布情况的定量分析得出:随着扭转圈数、压力、扭转半径的增大,剪切作用增强,SiC颗粒分布均匀性提高；变形温度升高,基体流动性提高,颗粒分布均匀性得到改善.
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