在滑动、无润滑的条件下,研究了AlSiCuPb合金的摩擦磨损特性,特别是抗咬合性。结果表明,磨损表面形成一层含有Al、Si、Pb、O化合物组成的反应膜,可显著地改善热挤压铸造合金的抗咬合性能;含Pb量为20%与25%的合金,其表面形成的反应膜几乎覆盖整个磨损表面时,磨损率稳定,摩擦因数出现低谷平台。因此,反应膜对提高抗咬合性具有重要作用。 The friction and wear properties of AlSiCuPb alloys, especially the seizure resistance, were investigated under sliding and non-lubricated conditions. The results show that the formation of a reactive layer containing Al, Si, Pb and O on the worn surface can significantly improve the anti-seizure properties of hot-extruded cast alloys. The alloy containing 20% ​​and 25% The formation of the reaction film almost covers the entire wear surface, the wear rate is stable, the friction factor appears trough platform. Therefore, the reaction film plays an important role in improving seizure resistance.