Influence of oxide layer on carbon diffusion during anode plasma electrolytic carburizing

Autor:	A. V. Zhirov, S. A. Kusmanov, A. R. Naumov, Pavel N. Belkin, I. G. D’yakov, T. L. Mukhacheva
Rok vydání:	2014
Předmět:	Materials science Diffusion Organic Chemistry Inorganic chemistry Metals and Alloys Oxide chemistry.chemical_element Electrolyte Surfaces Coatings and Films Carburizing Anode chemistry.chemical_compound chemistry Materials Chemistry Surface layer Carbon Layer (electronics)
Zdroj:	Protection of Metals and Physical Chemistry of Surfaces. 50:223-229
ISSN:	2070-206X 2070-2051
DOI:	10.1134/s2070205114020099
Popis:	This study is devoted to the effect of the oxide layer formed upon anodic plasma-electrolytic carburization on the rate of carbon diffusion in low carbon steels upon application of an aqueous solution of ammonium chloride with glycerol as a working electrolyte. Approximate determinations of carbon distribution in the surface layer of low carbon steels after their anodic plasma-electrolytic carburizing confirmed the hypothesis that there is deceleration of carbon diffusion by the oxide layer. Different structures of the oxide layer were revealed that depend on the method of sample cooling after their saturation with carbon in an anodic vapor-gas envelope. A possibility of controlling the thickness of the oxide layer was shown, as well as clarification of the surface by the choice of an electrolyte and treatment mode, was shown. A reduction in the roughness of the carburized surface from 0.62 ± 0.02 to 0.22 ± 0.02 μm was revealed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bdd03c4eb8bb09b4cec0ea8083433859 https://doi.org/10.1134/s2070205114020099 Zobrazit plný text záznamu Full text from SpringerLink