界面是复合材料特有的而且是及其重要的组成部分·采用光学显微镜、扫描电镜等手段 ,分析了反向凝固复合铜 /钢界面形态 ,组织结构和过渡区成分变化 ,探索反向凝固复合的初结合机制·研究表明 ,铜 /钢反向凝固复合经历液态铜在固态钢表面初始润湿 ;液态铜的凝固、结晶 ;Fe,Cu原子互扩散等物理冶金变化过程 ,从而实现复合界面良好的冶金结合 Interface is a unique and important component of composites. By means of optical microscope and scanning electron microscope, the morphology, structure and transitional composition of the interface of the composite copper / Initial bonding mechanism · Studies have shown that the composite solidification of copper / steel undergoes the initial wetting of liquid copper on the surface of solid steel, the solidification and crystallization of liquid copper, the physical metallurgical changes such as mutual diffusion of Fe and Cu atoms, Metallurgical bonding