Electrolyte-Plasma Nitriding of Austenitic Stainless Steel under Cathodic and Anodic Polarity

IF 0.9 Q3 Engineering Surface Engineering and Applied Electrochemistry Pub Date : 2023-10-17 DOI:10.3103/S1068375523050101

S. A. Kusmanov, I. V. Tambovskii, T. L. Mukhacheva, S. A. Silkin, S. S. Korableva, R. D. Belov, E. V. Sokova

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Abstract—

The article presents the results of surface modification of austenitic stainless steel by electrolyte-plasma nitriding under anodic and cathodic polarity of the product being treated. The morphology and surface roughness, phase composition, and microhardness of diffusion layers, as well as tribological and corrosion properties, were studied. The effect of physicochemical processes during anodic and cathodic treatments on the features of the formation of a modified surface and its operational properties is demonstrated. The anodic treatment increased the hardness of the nitrided layers up to 1150 HV, halved the surface roughness, improved the wear resistance by a factor of 166, and decreased the coefficient of friction by a factor of 1.6. The cathodic treatment increased the hardness only to 580 HV and improved the wear resistance by a factor of 13.6. Both treatments were shown to decrease pitting corrosion in a sodium chloride medium.

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阴极和阳极极性条件下奥氏体不锈钢的电解等离子体氮化

摘要——本文介绍了在被处理产品的阳极和阴极极性条件下，采用电解质等离子体氮化对奥氏体不锈钢进行表面改性的结果。研究了扩散层的形貌、表面粗糙度、相组成、显微硬度以及摩擦学和腐蚀性能。论证了阳极和阴极处理过程中的物理化学过程对改性表面形成特征及其操作性能的影响。阳极处理将氮化层的硬度提高到1150HV，表面粗糙度减半，耐磨性提高了166倍，摩擦系数降低了1.6倍。阴极处理仅将硬度提高到580HV，并将耐磨性提高了13.6倍。在氯化钠介质中，这两种处理都能减少点蚀。

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来源期刊

Surface Engineering and Applied Electrochemistry Engineering-Industrial and Manufacturing Engineering

CiteScore

1.60

自引率

22.20%

发文量

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.