采用快速升温热压法制备((1-X) SiC-XGr)20wt.%/Al-0.8Si-1.2Mg-0.4Cu复合材料,研究其与钢球对磨的摩擦磨损规律.结果表明:快速升温热压法可制备致密性较高的(SiC,Gr)20wt.%/Al复合材料,并有效抑制剧烈的界面反应.复合材料与GCr15钢的摩擦系数随载荷波动不大,随X增大而降低.X≤0.3时,脱落在摩擦面的石墨较少,摩擦系数下降较慢,X＞0.3后,摩擦系数快速减小.X＝0.2和0.3时复合材料的磨损率随载荷增加急剧增大,差别最大达7倍,而X≤0.05或≥0.6时,SiC与石墨颗粒能协调作用,复合材料具有良好的耐磨性,磨损率随载荷变化较小.X＝0.6时,复合材料具有最低的磨损率(8.4×10-4mm3/m),处于超轻微磨损状态.
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