(1. 上海交通大學(xué) 金屬基復(fù)合材料國家重點(diǎn)實(shí)驗(yàn)室， 上海 200030；
2. 昆明理工大學(xué) 機(jī)電工程學(xué)院， 昆明 650093)
摘 要: 建立了碳化硅、 石墨顆粒混雜增強(qiáng)鋁基復(fù)合材料的摩擦系數(shù)模型。 將混雜復(fù)合材料摩擦系數(shù)處理成無碳化硅時的石墨－鋁基復(fù)合材料摩擦系數(shù)分量、碳化硅對鋼的刮擦從而引起的摩擦系數(shù)分量兩部分之和。 對兩部分分量分別進(jìn)行了建模和計算， 然后相加得到混雜復(fù)合材料的總摩擦系數(shù)模型。 通過與實(shí)驗(yàn)數(shù)據(jù)的比較， 表明該模型能夠較準(zhǔn)確地計算較高石墨含量的混雜鋁基復(fù)合材料的摩擦系數(shù)。
關(guān)鍵字: 模型； 摩擦系數(shù)； 混雜； 鋁基復(fù)合材料
（1. State Key Laboratory of Metal Matrix Composites,
Shanghai Jiaotong University， Shanghai 200030， P.R.China；
2. Kunming University of Science and Technology， Kunming 650093， P.R.China）
Abstract:A model of friction coefficient of aluminum matrix hybrid composite was proposed. The total friction coefficient of the hybrid composite was treated as the sum of two parts. One part is the friction coefficient of the graphitealuminum matrix composite without consideration of silicon carbide. The other part is that resulted from silicon carbide ploughing steel. The first part was described by a regression equation using an exponential function. The second part can be induced from the classic friction theory of molecularmechanics. The model of friction coefficient of the hybrid composite is proved to be very suitable to calculating the friction coefficient of the hybrid composite with high fraction of graphite.
Key words: models； friction coefficient； aluminum matrix composites； hybrid composites
