Investigation of changes in phase composition and tribological properties of 65G steel during electrolyte-plasma hardening

IF 0.3 Q4 PHYSICS, MULTIDISCIPLINARY Bulletin of the University of Karaganda-Physics Pub Date : 2023-09-30 DOI:10.31489/2023ph3/119-127

B.K. Rakhadilov, L.B. Bayatanova, Z.A. Satbayeva, R.S. Kozhanova, R.Ye. Sakenova, G.U. Yerbolatova

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Abstract

This paper presents the results of studies of phase composition and tribological properties of 65G steel, before and after electrolytic-plasma hardening at different regimes. The technology of electrolyte-plasma hardening and laboratory installation for implementation of electrolyte-plasma hardening are described. It was found that after electroplasma hardening a modified layer consisting of α'-phase (martensite) and cementite M3C is formed. The developed technological process of hardening of a part made of 65G steel makes it possible to obtain layers on the surface of the part that provide an increase in wear resistance by 2 times and in resistance to abrasive wear by 1.7 times. The carried out investigations have shown perspective and expediency of application of the developed method to increase operational properties of parts working in conditions of friction and wear. This technology can be used to increase the service life of working elements of agricultural machinery.

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电解等离子体硬化过程中65G钢相组成及摩擦学性能变化的研究

本文介绍了65G钢在不同条件下电等离子体硬化前后的相组成和摩擦学性能的研究结果。介绍了电解等离子体硬化技术和实施电解等离子体硬化的实验室装置。结果表明，经电等离子体硬化后，形成由α′相(马氏体)和渗碳体M3C组成的改性层。所开发的65G钢零件硬化工艺可以使零件表面的层增加2倍的耐磨性和1.7倍的耐磨性。所进行的研究表明，应用所开发的方法来提高在摩擦和磨损条件下工作的零件的操作性能是可行的。该技术可用于提高农业机械工作元件的使用寿命。

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Bulletin of the University of Karaganda-Physics PHYSICS, MULTIDISCIPLINARY-

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