The partial liquid phase during superplastic deformation of 2024 aluminum alloy - matrix composites reinforced with sic particulates ( pm - sic ( subscript p ) / ly12 ) by powder metallurgical ( pm ) processing was studied usina sem etc 摘要用扫描电镜等方法对碳化颗粒强化ly12铝合金基复合材料超塑变形时出现的局部液相现象进行了研究分析。