Electrolytic-plasma cementation influence of regimes on phase structure and steel 30CrMnSi hardening

Skakov, Маzhyn; Laila, Zhurerova; Scheffler, Michael

doi:10.1109/ifost.2012.6357723

Cited by 2 publications

(1 citation statement)

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“…An experimental study into the process of micro-arc cementation of steel articles in powder environments was carried out in [7]. The use of coal powder intensifies the process of diffusion saturation with carbon and the formation of a diffusion layer, 0.3 mm deep, occurs within 2-3 minutes, which reduces the cementation process by hundreds of times.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Regularities in the formation of wear-resistant coatings on steel samples when machining them with electrical discharge

Marchenko

Kurepin

2021

EEJET

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This paper considers the technology of electrical discharge machining of steel friction pairs and reports the results of experimental studies. Analysis of the experimental studies has shown that increasing the "anode-cathode" voltage leads to a sharp decrease in the micro-hardness of the surface layer. The study has also made it possible to determine the characteristic dimensions of the structural elements, the height parameters of surface roughness. The elemental composition of the resulting surface of a steel 15KHGN2TA sample differs from the composition of coatings and the surface layers of samples modified by electrical discharge machining involving various electrodes. Under the "anode-cathode" system operation mode, a thin layer of coating with a stable modified structure forms on the surface of the cathode due to dissipative processes. It is shown that the height of surface irregularities on sections after friction is higher than on the surface sections outside the friction flow, which is associated with the formation of a friction transfer film on the samples' surface. It was established that the interaction of friction of steel samples treated by electrical discharge machining forms a thin film on the surface of friction of steel samples, which leads to a change in the relief of surfaces with an increase in the height of the micro-protrusions, as well as the structuring of the transfer film in the direction of sliding. The effect of machining steel surfaces by electrical discharge on the wear resistance of metal-polymer tribosystem was established. The implementation of the devised technology could provide a significant increase in the wear resistance of metal-polymer tribojunctions

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Regularities in the formation of wear-resistant coatings on steel samples when machining them with electrical discharge

Marchenko

Kurepin

2021

EEJET

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Microstructure and Microhardness Changes of 30CrMnSiA Steel Modified Surface Layers by Electrolyte-Plasma Processing

Skakov

Batyrbekov

Zhurerova

et al. 2013

AMM

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This work is devoted to research of 30CrMnSiA steel structurally modified surface layers and study of electrolyte-plasma treatment parameters influence on changing peculiarities of structural-phase state and also the increase of constructional 30CrMnSi steel operating ability. The chosen technology leads to the formation of stable ferrite-pearlite structures in 30CrMnSi steel surface layers, provides high mechanical properties. As for the basic experimental methods of research in the work we used metallographic analysis applying optical microscope «NEOPHOT-21» and «AXIOPHOT-2», Х-ray analysis on the diffractometer ХPertPRO in monochromatic CuKα-radiation, mechanical tests for microhardness on PMT-3М installation. It is established that microstructure of 30CrMnSi steel modified layers samples while different processing modes, consists of α - phase, iron carbides. Using technology of structural steels electrolytic-plasma cementation under arc discharge terms in the electrolyte, we get diffusive surface layer with increased microhardness parameters and wear resistance providing good operating ability for details often subjected to wear.

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Electrolytic-plasma cementation influence of regimes on phase structure and steel 30CrMnSi hardening

Cited by 2 publications

References 0 publications

Regularities in the formation of wear-resistant coatings on steel samples when machining them with electrical discharge

Regularities in the formation of wear-resistant coatings on steel samples when machining them with electrical discharge

Microstructure and Microhardness Changes of 30CrMnSiA Steel Modified Surface Layers by Electrolyte-Plasma Processing

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