Abstract
A study was made of the zones of diffusional reaction of chromium diboride with carbon steels, cast iron, and Armco iron, forming under glow-discharge conditions. An attempt was made to discover the laws governing the formation of diffusion layers in these systems. It was established that with rise in carbon concentration in the steel the width of the diffusional reaction zone grows, attaining a maximum for a steel with a carbon content of 0.8%. At a carbon concentration in the steel of 1.6% or more, the width of the diffusion zone sharply decreases. In a CrB2-steel system a strong inhibiting influence on diffusion is exerted by the higher chromium carbide Cr3C2.
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