Fe_3Al基复合材料的制备及其摩擦磨损行为  

Study on Preparation and Friction and Wear Behavior of Fe_3Al-based Composite Materials

作　　者：马洪涛[1] 尹衍升 李静[1] 朱海涛[2] 

机构地区：[1]山东大学材料液态结构及其遗传性国家教育部重点实验室,工程陶瓷山东省重点实验室,山东济南250061 [2]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《材料热处理学报》2004年第6期4-7,共4页Transactions of Materials and Heat Treatment

基　　金：国家自然科学基金资助 (50 2 4 2 0 0 8)

摘　　要：用球磨机械合金化工艺制备Fe3Al粉末 ,采用粉末冶金工艺 ,选择不同的烧结温度和烧结压力 ,获得了Fe3Al基复合材料。对材料的物理力学性能、摩擦磨损性能和微观结构进行分析测试 ,借助磨损表面扫描图像 ,分析了该材料的磨损形式 ,探讨了其磨损机理。结果表明 :在烧结温度为 1 0 5 0℃ ,烧结压力为 1 0～ 1 5MPa的工艺条件下制得的Fe3Al基复合材料有较好的摩擦磨损性能。其摩擦机理为 :疲劳磨损和磨粒磨损为主 ,兼有磨粒和粘着磨损混合形式。Fe3Al powder was prepared by mechanical alloying technique. Fe3Al-based composite materials were manufactured by powder metallurgy technology with different sintering temperatures and different sintering pressure. The mechanical properties, friction, wear performance and microstructure of the composite were tested. The results show that the composite produced by sintering at 1050°C and 10-15 MPa pressure exhibits excellent friction and wear performance. The friction mechanism mainly are fatigue wear and abrasive wear and adhesive wear can be also observed.

关 键 词：Fe3Al基复合材料 摩擦磨损性能 磨损机理 

分 类 号：TB333[一般工业技术—材料科学与工程] TG148[金属学及工艺—金属材料]