Abstract
A kind of Ti–Fe–Ni–C compound powder was obtained by heating a mixture of FeTi, Ni and sucrose to pyrolyse sucrose. The sucrose is the source of carbon that is a reactive constituent as well as a binder in the compound powders. These powders were employed to in situ synthesise TiC–Fe36Ni cermet coatings by reactive detonation spraying. The cermet coatings are mainly composed of different reinforcement areas where the round fine TiC particles homogeneously distribute within the metallic matrix. The surface hardness and average microhardness of the cermet coatings are about 94±2 (HR15N) and 1752 HV(0·2) respectively. Finally, the TiC–Fe36Ni cermet coatings have good wear resistance performance and bonding strength.
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