S. A. Kusmanov, I. V. Tambovskii, S. S. Korableva, S. A. Silkin, A. A. Smirnov, I. A. Kusmanova, I. S. Gorokhov
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引用次数: 1
Abstract
The structural phase composition and some properties of a modified medium-carbon steel 45 surface after being subjected to cathodic plasma electrolytic nitriding in ammonium chloride and ammonia solution were studied. It was shown that the steel surface cathodic nitriding is accompanied with a high-temperature oxidation along with formation of FeO, Fe2O3, and Fe3O4 oxides, as well as nitrogen diffusion and quenching with formation of FeN, Fe3N, and Fe4N phases, martensite, and residual austenite. A competitive effect was revealed of the surface erosion resulting from the discharges and high-temperature oxidation on the morphology and surface roughness. It was found that the maximum microhardness of the modified layer reaches 1040 HV, and the current density of the nitrided surface corrosion decreases by 1.5–2.4 times.
期刊介绍：
Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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