采用表面化学镀镍前后的短炭纤维(Cf)做为增强体,纯镁粉为基体金属,通过粉末冶金法和热挤压制备镁基复合材料.采用SEM-EDS、TEM、XRD和拉伸等测试手段表征短炭纤维增强镁基复合材料的微观形貌、元素组成、物相组成及其力学性能.结果表明:炭纤维在复合材料中分布均匀且沿挤压方向定向排列；采用经过表面化学镀镍处理的短炭纤维与金属镁复合后界面结合状态优良,Mg2Ni物相的存在表明润湿性的改善是通过金属镁与涂层发生反应而实现；对比屈服强度测试值和理论计算值的大小,表明涂层炭纤维增强镁基复合材料的增强机理主要是界面载荷传递效应.
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