Improving the technology of producing boron and siliconized layers and comparing their propertie

Editorial Board PCSS Journal; S.A. Kniaziev; H.O. Kniazieva; V.V. Subbotina; O.O. Volkov; V.A. Riaboshtan

doi:10.15330/pcss.26.2.436-441

Authors

S.A. Kniaziev National Technical University “Kharkiv Polytechnic Institute”, Kharkiv, Ukraine
H.O. Kniazieva National Technical University “Kharkiv Polytechnic Institute”, Kharkiv, Ukraine
V.V. Subbotina National Technical University “Kharkiv Polytechnic Institute”, Kharkiv, Ukraine
O.O. Volkov National Technical University “Kharkiv Polytechnic Institute”, Kharkiv, Ukraine
V.A. Riaboshtan National Technical University “Kharkiv Polytechnic Institute”, Kharkiv, Ukraine

DOI:

https://doi.org/10.15330/pcss.26.2.436-441

Keywords:

steel, boride layer, siliconization, metallographic studies, porosity, tool indentation, chromium nitride

Abstract

The paper presents the results of studies of single-phase boride layer formation and solid-gas siliconization on carbon structural steel. The influence of powder grain size and composition of the saturating mixture on the structure and properties of diffusion coatings is shown. The properties of the obtained surface structures are compared with those of PVD-obtained chromium nitride coatings. The possibility of obtaining thick diffusion single-phase boride and silicide layers that are not inferior in mechanical and chemical characteristics to nitride layers obtained by ion-plasma deposition was established. The presence of 75,7% FeSi, 19,6% Si₂CN₄ та 4,8% Al₅Fе phases in the silicide layer was shown, which provided high oxidation resistance at a temperature of 1000°C

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