Abstract
Based on the limitations of traditional viewpoint that the carbide types in chromium wear-resistant alloys were determined by the Cr/C value, the aim of this study was to reveal the mechanism of recombination-reconstruction between different atoms and the influence of various elements on the formation of carbide types during the mutual transformation of M3C, M7C3 and M23C6 carbides by analyzing the difference of carbide types in different Fe-Cr-C alloys and the transformation characteristics of carbide types before and after carburization and decarbonization of 3Cr13 stainless steel. The viewpoints were put forward as follows: the transformation between M3C and M7C3 carbides are predominantly controlled by the chromium content, and the main controlling factor of transformation between M7C3 and M23C6 carbides is the carbon content. In the different stages of carbide transformation, the chromium and carbon play the main controlling role respectively
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