The objective of this investigation is to develop a method for TiC coating on steel which can be easily performed at a lower temperature than that commonly used. An electroless TiC coating from a molten salts bath was studied. For an optimum condition to perform the TiC coating, a bath con-In this condition, the TiC coatings possessed a metallic brightness and high hardness more than 4,000kg/mm2. The TiC coating appears to be performed when the carbon content of steel exceeds around 0.8%. It is

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... concluded that Ti deposited on steel specimens by a disproportionation reaction combines with carbon to form TiC, and that the carbon involved seems to be transferred from the inner part of the steel to the surface. Kanno Laboratory for Heat Treatment 803, Nippa-cho, Kohoku-ku, Yokohama 222 -23-