镁基复合材料在干摩擦条件下的抗磨损性能研究进展  

Research Development of Wear Resistance of Magnesium Matrix Composites Under Dry Sliding Friction Condition

作　　者：陈百明[1] 张振宇[1] 张宗莹 安亮[1] 余华俐[1] 

机构地区：[1]兰州工业学院材料工程学院,甘肃兰州730050 [2]兰州陇能电力科技有限公司,甘肃兰州730070

出　　处：《粉末冶金工业》2014年第3期40-47,共8页Powder Metallurgy Industry

基　　金：国家自然科学基金资助项目(51361020)

摘　　要：镁基复合材料具有高的比强度和比刚度,具备替代密度较大的钢或铝基结构材料的巨大潜力。但镁基复合材料的抗磨损性能较差,对其抗磨损性能的研究相对较少。通过加入强化相、稀土或原位合成强化相,热处理,表面处理等方法可在某些摩擦条件下不同程度地提高镁基材料的抗磨损性能。本文总结了近几十年来对镁基复合材料抗磨损性能的研究进展,并提出了基体的合金化和形成有效金属间化合物是提高镁基复合材料整体抗磨损性能的有效方法。Magnesium matrix composites with high specific strength and specific stiffness have a great potential for replacing other structure materials with high density such as steel or aluminum, but the wear resistance of magnesium matrix composites is inferior and its research is relatively less compared with iron and copper based com- posites. The wear resistance of magnesium matrix composites can be improved at different levels under certain fric- tion conditions through adding strengthening phase or rare earth, in situ synthesizing hard phases, heat treatment and surface treatment. The research development of wear resistance of magnesium matrix composites in recent decades was summarized, and it was also proposed that matrix alloying and forming intermetallic compounds were ef fective methods for enhancing integral wear resistance of magnesium matrix composites.

关 键 词：镁基复合材料 抗磨损性能 金属间化合物 强化相 合金化 

分 类 号：TB333[一般工业技术—材料科学与工程] TB302.3