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采用扫描电子显微镜对粉末冶金法制备的ＳｉＣｐ／７０７５Ａｌ复合材料的拉伸断口及其附近区域的纵向显微组织进行了分析，并对该材料的断裂过程进行了动态原位观察。为了揭示ＳｉＣｐ／７０７５Ａｌ复合材料的断裂特性，建立了ＳｉＣｐ／７０７５Ａｌ复合材料的拉伸断裂模型
The tensile fracture of SiCp / 7075Al composites prepared by powder metallurgy and its longitudinal microstructure were analyzed by scanning electron microscopy. The fracture process of the material was observed in situ. In order to reveal the fracture characteristics of SiCp / 7075Al composites, the tensile fracture model of SiCp / 7075Al composites