Fe_3Al金属间化合物基摩擦材料的制备工艺与性能  

Preparation Technology and Properties of Fe3Al Intermetallic Based Friction Materials

作　　者：刘英才[1] 李静[2] 尹衍升 

机构地区：[1]中国海洋大学材料科学与工程研究院,山东青岛266003 [2]山东大学材料科学与工程学院,山东济南250061

出　　处：《机械工程材料》2005年第6期23-26,共4页Materials For Mechanical Engineering

基　　金：教育部博士点基金资助项目(20020422001)山东省重点基金资助项目(Z2002F02)国家863计划资助项目(2004AA639680)

摘　　要：采用机械合金化结合加压烧结的方法制备了一种新的Fe3Al金属间化合物基摩擦材料,并对其制备工艺、微观结构和力学性能、抗氧化性以及干滑动摩擦磨损性能进行了试验研究。结果表明:Fe3Al金属间化合物基摩擦材料密度低,强度高,抗氧化性好,摩擦因数稳定,耐磨性好;不同摩擦阶段具有不同的磨损机制,主要包括磨粒磨损、裂纹萌生与扩展、微区脆性剥落以及氧化磨损等。New Fe3Al intermetallic based friction materials were prepared by mechanical alloying and hot pressing. The preparation technique, microstructure and mechanical properties, oxidation resistance and dry sliding tribology properties were studied. Fe3Al intermetallic based friction material showed low density, high strength, good oxidation resistance, smooth friction coefficient and excellent wear resistance. There are different wear mechanisms during different friction stages, including particles wear, crack nucleation and propagation, brittle split and oxidation wear etc.

关 键 词：FE3AL 金属间化合物 摩擦 磨损 

分 类 号：TB332[一般工业技术—材料科学与工程]