Mg-Li基复合材料具有很高的比强度和比刚度,是宇航、兵器等行业的理想结构材料之一. 综述了Mg-Li基复合材料常用的基体合金和增强体,介绍了真空(保护气氛)浸渗、粉末冶金、薄膜冶金以及搅拌铸造等几种常用制备方法,并比较了这几种制备方法的优缺点以及适用增强体,还综述了几种常见Mg-Li基复合材料的组织与性能. 对目前存在的问题进行了探讨,指出现有Mg-Li基复合材料制备方法均采用外加增强体的办法引入强化相,其存在较严重界面反应的缺点,原位自生反应合成增强体是一条可行的途径;此外,采用变形加工或后续热处理也是提高Mg-Li基复合材料力学性能的有效方法.
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