Ti(C, N)-Based Cermets with Two Kinds of Core-Rim Structures Constructed by β-Co Microspheres

Ti(C, N)-Based Cermets with Two Kinds of Core-Rim Structures Constructed by β-Co Microspheres

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Ti(C, N)-based cermet materials represent the best choice of materials for the Lift manufacturing industry and military products.In this study, we use cubic β-cobalt(β-Co) as the binder phase to strengthen constructed cermets.At the same time, to optimize the microstructure, (Ti, W, Mo, Ta) (C, N) powders are added to form two kinds of core-rim morphologies.

Here, β-cobalt powders with face-centered cubic structures are obtained by the solid-phase reaction of high-energy ball milling.A solid-phase chemical reaction and a carbothermic reduction-nitridation method are used to prepare the (Ti, W, Mo, Ta) (C, N) powders.In our process, first Blueberry Supplements we mix the cobalt and (Ti, W, Mo, Ta) (C, N) powders; then we press the powder mixtures into rectangular samples and sinter them in a pressure sintering furnace to obtain Ti(C, N)-based cermets with two kinds of core-rim structure, that is, black core/white rim and white core/gray rim.

The results show that the new cermets demonstrate excellent toughness and performance.