李新梅,刘炳,董晓锋

• 1:新疆大学机械工程学院机械工程博士后科研流动站

摘要(Abstract)：

采用搅拌铸造法制备了Al2O3颗粒增强Al-2%Mn合金基复合材料,对复合材料的显微组织、硬度和摩擦磨损性能进行了研究。结果表明:复合材料组织由Al基体、δ-Al2O3和MnAl6相组成,且Al2O3颗粒在铝基体中弥散分布。与原始铝基体相比,复合材料的布氏硬度提高了约70%。无论是干摩擦还是SO4.Cl-Na.Ca.Mg型弱碱性水溶液润滑摩擦情况下,复合材料的磨损量均显著低于铝基体。与铝锰合金相比,复合材料具有较低的冲刷腐蚀失重速率。复合材料具有优良的耐磨和耐蚀性。

关键词(KeyWords)： Al-Mn合金基复合材料;Al2O3颗粒;显微组织;摩擦磨损;冲刷腐蚀

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50861008);; 新疆高校科研计划基金资助项目(XJEDU2009S03);; 中国博士后科学基金资助项目(20090451427);中国博士后科学基金特别资助项目(201003708)

作者(Author): 李新梅,刘炳,董晓锋

DOI: 10.13289/j.issn.1009-6264.2011.07.005

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