李祖来,蒋业华,周荣,陈志辉,山泉

• 1:昆明理工大学材料科学与工程学院

摘要(Abstract)：

采用真空实型铸渗(V-EPC)工艺制备碳化钨颗粒增强铁基表层复合材料,观察并研究其基体组织和抗三体磨料磨损性能。结果表明,基体组织的变化对复合材料的磨损性能产生显著的影响,随着Cr含量的增大,复合材料基体组织中的碳化物含量增加,形貌由长条状向块状转变。而复合材料的三体磨料磨损性能随着Cr含量的增大呈增加趋势,与未添加Cr的表层复合材料相比,当基体中Cr含量为27.4%时,表层复合材料的三体磨料磨损性能提高了40.6%。Cr的添加可提高WC p/铁基表层复合材料三体磨料磨损性能的机制为双"阴影效应"和"支撑效应"的协同作用。

关键词(KeyWords)： 颗粒增强复合材料;磨料磨损;真空实型铸造;基体组织

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51241002,51361019)

作者(Author): 李祖来,蒋业华,周荣,陈志辉,山泉

DOI: 10.13289/j.issn.1009-6264.2014.01.004

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