不连续碳化硅增强铝基复合材料组织特性研究
申红伟,吕毓雄,毕敬,马宗义,高荫轩
摘要(Abstract)：
利用金相显微镜、扫描电镜和透射电镜对粉末冶金法制备的碳化硅晶须(SiC_w)与碳化硅颗粒(SiC_p)增强的各种铝合金基体复合材料的显微组织和断口形貌进行了系统的观察与研究。研究结果表明:碳化硅晶须与碳化硅颗粒在基体中分布均匀,与基体界面结合良好,无明显的缺陷存在。增强后基体的显微组织与未增强合金组织基本相同。SiC_w/Al和SiC_p/Al复合材料的断口在宏观上因塑性较差而呈现脆性形貌,但在微观上仍具有塑性特征。
关键词(KeyWords)： 碳化硅晶须;碳化硅颗粒;复合材料
基金项目(Foundation):
作者(Author): 申红伟,吕毓雄,毕敬,马宗义,高荫轩
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