采用XRD和SEM分析试样的金相组织.以干摩擦、湿摩擦、湿摩擦加磨粒为摩擦条件,采用M-2000型摩擦磨损实验机对Al2 O3颗粒增强铝锰基复合材料和纯铝进行摩擦磨损实验.实验结果表明:复合材料是由铝锰固溶体、铝锰化合物MnAl6、Al11 Mn4相以及Al2O3颗粒增强相组成;随着载荷的增加,材料的失重量增大;在同一种摩擦条件下,氧化铝颗粒增强复合材料的失重量明显小于纯铝材料的失重量;对于同一种材料来说,在湿摩擦和磨粒的共同作用下材料的失重量最大,干摩擦次之,湿摩擦失重量最小.%The metallographic structures of the simples were investigated by XRD and SEM.As dry sliding,corrosive liquid,corrosive liquid and abrasive for friction conditions,the friction and wear experiments of Al2 O3 particle reinforced Al-Mn matrix composite and pure aluminium were tested by the friction and wear testing machine of M2000.The results showed that the composite was mainly made up of aluminum and Al-Mn compounds MnAl6,Al11Ml4 and Al2O3 particles reinforced phase.With the load increasing,weightlessness of the material increased.In the same kind of friction conditions,the weightlessness of Al2 O3 particle reinforced Al-Mn matrix composite was obviously less than pure aluminium material.For the same kind of material,the weightlessness was the largest in the corrosive liquid and abrasive,the dry sliding was the second smallest,and the corrosive liquid weight loss minimum.
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