Abstract
Abstract Cermets were produced by a technology including pressing and sintering of titanium carbide TiCx (0.7 < × < 0.98) preforms and molten tool steel infiltration. So-called “graded” cermets were produced using a controlled distribution of TiCx with different x. The resultant redistribution of alloying elements between the steel and TiCx during both the infiltration and following heat treatment was very essential. The changes of both steel and TiCx compositions produce changes in the process of austenitization, carbide dissolution and precipitation, and martensitic transformation. Both the strength of the material and the gradient of properties in graded cermets can be controlled using both kinetic factors of element redistribution and structure changes caused by the heat treatment.
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