Structure and properties of diffusion layers formed in vacuum cyanidation of steel 20Kh13 in an atmosphere of pyrolysis of liquid hydrocarbons

The use of carburized high-chromium steels with 13 - 18% Cr for the product ion of wear-resistant shaping tools and attachments is advantageous for man y branches of industry. At the same time, the deposition of carbide diffusi on layers on corrosion-resistant high-chromium steels has some special feat ures and technological difficulties, specifically, in quenching, tempering, and polishing of parts and tools. The results described in the present pap er and the developed technology of vacuum chemical heat treatment (VCHT), n amely, cyanidation of steel 20Kh13 in an active carburizer based on ethanol amines are of interest for the production of small-size tools and attachmen ts in tool shops of enterprises producing instruments, electronics, watches and clocks, etc.