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利用差热分析（DTA）、X－射线分析（XRD）等测试手段，研究了反应火焰喷涂过程中喷涂粉末（Fe－Ti－C体系）的反应机理．研究结果表明，在反应火焰喷涂合成TiC-Fe涂层中，喷涂粉末在飞行过程中的反应是逐步进行的．喷涂距离为125～170mm是发生反应的主要区域．在到达工件表面时，反应已基本结束．因此，与传统热喷涂相比，反应火焰喷涂的优势在于，利用廉价原料一步合成、沉积比较昂贵的涂层材料．
The reaction mechanism of spray powder (Fe-Ti-C system) during reactive flame spraying was studied by differential thermal analysis (DTA) and X-ray analysis (XRD) The results show that the reaction of spray powder during flight is progressively carried out in reactive flame sprayed TiC-Fe coatings. Spraying distance of 125 ~ 170mm is the main reaction area. Upon reaching the surface of the workpiece, the reaction has basically ended. Therefore, the advantage of reactive flame spraying over traditional thermal spraying is the one-step synthesis of inexpensive starting materials for the deposition of more expensive coating materials.