Al_2O_3颗粒增强铝锰合金复合材料性能研究  

Study on Materials Performance of Al_2O_3 Particle Reinforced Al-Mn Alloy Composite

作　　者：方佳[1] 刘炳[1] 代廷海[1] 贾伯早[1] 李振华[1] 郭莉燕[1] 

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830008

出　　处：《铸造技术》2011年第9期1305-1308,共4页Foundry Technology

基　　金：国家自然科学基金资助项目(50861008)

摘　　要：采用搅拌法,向熔融状态下的铝锰合金中添加Al2O3颗粒,制备成颗粒增强复合材料。将铝锰合金和复合材料的硬度及两种试样的冲击韧度进行对比试验;将铝锰合金和复合材料在加有磨粒的高矿化度水条件下进行磨损试验,比较两种材料的质量磨损量在不同载荷条件下变化。试验表明,颗粒增强复合材料的硬度相对合金基体有显著提高;对冲击断口进行分析,颗粒增强体的加入有细化晶粒的作用;铝锰合金及其复合材料的质量磨损量都是随着载荷的增大而增大,在较大载荷的条件下(>110 N),复合材料的耐磨性远远大于铝锰合金。The Al2O3 particle reinforced composites was prepared by mechanical stirring the Al2O3 particle into the melt of Al-Mn alloy.Contrast study was carried out by the hardness and the impact test of the Al-Mn alloy and composites.Under the conditions of high salinity water with grit,the abrasion test of Al-Mn alloys and particle reinforced composites was conducted.Comparing the amount of mass loss of the two kinds of materials,the results show that the hardness of Al2O3 particle reinforced Al-Mn composites had obviously raised,and analysis from the impact test,the Al2O3 particle had grain refined effect.The amount of mass loss of the Al-Mn alloy and Al-Mn composite were increasing with the increase of load under the heavier load（110 N）.The abrasion resistance of Al2O3 particle reinforced Al-Mn composites is better than Al-Mn alloy its self.

关 键 词：铝锰合金 复合材料 颗粒增强 摩擦磨损 

分 类 号：TB331[一般工业技术—材料科学与工程]