通过热压缩试验,研究了SiC颗粒增强铝基复合材料在应变速率为0.001～1 s-1,变形温度为713～773 K的热成形性能,结果表明:所研究复合材料的真应力随变形温度的升高、应变速率的降低而降低,同时采用zener-Hollomon参数对其热变形方程进行了研究,建立了铝基复合材料的热变形方程,并综合考虑应变速率与温度的影响,采用动态材料模型建立了所研究复合材料的热加工图,同时根据Malas's稳定性准则确定了其非稳定变形区的范围.
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