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对Ｔ８钢、４５钢、Ｃｒ１２ＭｏＶ钢试样进行了渗钛实验，用光学显微镜、Ｘ射线衍射仪及电子探针等对渗层形态、结构及微区成分进行了分析，对渗层的形成机理进行了探讨。认为在被覆碳化钛过程中，渗剂中残留的氧化性气氛，反应过程中产生的废气严重危害渗层的形成，文中提出的软密封方法可有效地防止氧化并能及时排除反应中产生的废气，使上述三种材料均能稳定获得８～１０μｍ渗层。
The samples of T8 steel, 45 steel and Cr12MoV were subjected to the titration test. The morphology, structure and micro-zone composition of the coating were analyzed by optical microscope, X-ray diffraction and electron probe. The formation mechanism of the coating Discussed. It is considered that during the process of coating titanium carbide, the residual oxidizing atmosphere in the permeating agent and the exhaust gas generated during the reaction severely endanger the formation of the permeable layer. The soft sealing method proposed in the article can effectively prevent the oxidation and promptly eliminate the exhaust gas generated during the reaction , So that the above three materials can be stable 8 ~ 10μm layer.