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研究了ＳｉＣｐ粒子尺寸、质量分数及热处理工艺对铸造ＳｉＣｐ／ＺＬ２０１复合材料的室温和高温力学性能的影响．随ＳｉＣ粒子质量分数的提高和粒子尺寸的增大，复合材料的室温抗拉强度呈下降趋势．随温度升高，基体合金的抗拉强度急剧下降，而复合材料的抗拉强度则下降较小．当温度大于２４０℃时复合材料的抗拉强度高于基体合金，这表明ＳｉＣ粒子的加入提高了基体合金的高温抗拉强度．
The effects of SiCp particle size, mass fraction and heat treatment on the mechanical properties of SiCp / ZL201 composite at room and elevated temperatures were investigated. With the increase of SiC particle mass fraction and the increase of particle size, tensile strength at room temperature of composites decreases. With the increase of temperature, the tensile strength of the matrix alloy decreases sharply, while the tensile strength of the composite decreases less. When the temperature is higher than 240 ℃, the tensile strength of the composite is higher than that of the matrix alloy, which indicates that the addition of SiC particles increases the high temperature tensile strength of the matrix alloy.