Abstract
The possibilities of producing Fe-Fe2B cermets as a result of sintering the pure elements Fe and B in a vacuum have been analysed. Attempts at sintering in the solid phase and with the participation of the liquid phase, the Fe-Fe2B eutectic, have been made. Metallographic qualitative and quantitative studies, X-ray structural qualitative and quantitative analysis and X-ray microanalysis allowed determination of the structure of Fe2B cermets as well as description of the kinetics of quantitative changes in phase proportions in the course of sintering. It has been found that the structure varies widely depending on sintering parameters and the composition of the sinter. Measurements of Fe-Fe2B cermet hardness and measurements of wear during dry friction by the pin-on-disc method have shown distinct advantages of the cermets under investigation as modern constructional materials. The hardness of Fe-Fe2B cermets, depending on their chemical composition and sintering parameters, ranges widely fromHV=150 to 1500, and their resistance to wear is comparable to that of diffusively boronized steels.
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