对喷雾共沉积工艺过程中的凝固与动量传输行为进行了分析。指出：在喷雾共沉积工艺过程中，孔穴形核方式有利于晶粒的细化。在动量传输全过程分析中，给出了金属微滴、增强相颗粒碰撞前后的速度计算公式，并在此基础上推导出了雾化微滴液膜铺展厚度计算公式。结果表明：雾化工艺参数与熔体界面能显著影响液膜厚度，对制备理想的沉积材料具有重要的指导意义。 The behavior of solidification and momentum transfer in spray co-deposition process was analyzed. It is pointed out that in the process of spray co-deposition, the hole nucleation mode is conducive to the grain refinement. In the whole process of momentum transfer, the calculation formulas of the velocity of the metal droplets and the phase particles before and after the collision of the phase particles are given, and on the basis of that, the calculation formula of the spreading thickness of the atomized droplets is deduced. The results show that atomization process parameters and melt interface can significantly affect the thickness of the liquid film, which has important guiding significance for the preparation of ideal deposition materials.