采用复合粉末加压成型的方法,成功制备了纳米Cu-Zn合金-Cu复合材料,获得了具有纳米结构表面层的铜基复合材料。对纳米表面层的微观结构、基体与表面的界面结构和相变特征及其对材料表面性能的影响进行了深入研究。实验结果表明,纳米表面层与基体结合良好,纳米表面层在经350℃左右退火,摩擦表面上形成了一层几乎覆盖整个摩擦表面的薄而连续的致密表面膜,该摩擦表面膜的存在,使复合材料的耐磨性和承载能力大幅度提高,耐磨性明显优于基体材料。 The nano-Cu-Zn alloy-Cu composite material was successfully prepared by the composite powder pressure forming method, and the copper-based composite material with nano-structured surface layer was obtained. The microstructure of nanosurface layer, interface structure and phase transition between matrix and surface and its influence on the surface properties of the nanocomposites were studied in detail. The experimental results show that the nanosurface layer is well bonded with the substrate, the nanosurface layer is annealed at about 350 ° C, and a thin and continuous dense surface film covering the entire friction surface is formed on the friction surface. The presence of the friction surface film, So that the wear resistance and load-bearing capacity of the composite greatly improved wear resistance was significantly better than the matrix material.