Electrolyte Plasma Nitriding of High-Speed Steel

Skakov, Маzhyn; Rakhadilov, Bauyrzhan; Sсheffler, Michael; Karipbayeva, Gaukhar; Rakhadilov, Merey

doi:10.4028/www.scientific.net/amm.379.161

Cited by 21 publications

(8 citation statements)

References 1 publication

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“…However, the effect of electrical discharges during cathodic treatment led to an increase in the coefficient of friction. Similar results were obtained for plasma electrolytic nitriding high-speed steel R6M5 [2] or alloy steel 34CrNi1Mo [3], where the resistance to abrasive wear is reduced by 1.5 times. Positive results were obtained with cathodic plasma electrolyte boriding of steel H13 [4] Anodic processes are characterized by a decrease in surface roughness due to the anodic dissolution of the sample, which makes it possible to reduce the friction coefficient and the intensity of wear [5].…”

Section: Introductionsupporting

confidence: 82%

Evaluation of tribotechnical properties of modified surfaces after plasma electrolytic treatment

Mukhacheva

Kalinina

Кусманов

2021

J. Phys.: Conf. Ser.

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The article considers the study of the effect of plasma electrolytic processing on the tribotechnical characteristics of medium-carbon steel. Friction tests were carried out in dry friction mode. Electron microscope and profilometer were used to study the friction tracks. For a comprehensive assessment of the quality of the modified surface layer, the Kragelsky-Kombalov complex parameter was calculated. It was found that plasma electrolytic treatment leads to a decrease in the coefficient of friction and weight wear in comparison with hardened and untreated steel. It has been determined that the mechanism of wear of samples after plasma electrolytic treatment is fatigue wear at boundary friction and plastic contact.

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Section: Introductionsupporting

confidence: 82%

Evaluation of tribotechnical properties of modified surfaces after plasma electrolytic treatment

Mukhacheva

Kalinina

Кусманов

2021

J. Phys.: Conf. Ser.

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“…Nitriding of samples by plasma-electrolytic method developed at the "Nanotechnology and new materials" Institute, D. Serikbayev EKSTU was carried out at MEPP installation [10]. Electrolyticplasma nitriding produced by heating and soaking in the saturating environment due to electric potential changes in a plasma layer, created between the electrolyte and the sample surface (cathode) [11].…”

Section: Materials and Methods Of Research (Experimental)mentioning

confidence: 99%

Wear-Resistance of Nitrided W-Mo-High Speed Steel in Abrasive Wear Conditions

Skakov

Rakhadilov

2013

KEM

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In this work the influence of electrolytic-plasma nitriding on the abrasive wear-resistance of R6M5 high-speed steel were under research. We registered that after electrolytic-plasma nitriding on R6M5 steel surface modified layer is formed with 20-40 μm thickness and with increased microhardness of 9000-12200 MPa. Testing mode for the nitrided samples high-speed steel on abrasive wear developed. It is established, that electrolyte-plasma nitriding allows to increase wear-resistance of R6M5 steel surface layer comparing to original. It was determined that abrasive wear-resistance of R6M5 steel surface layer is increased to 25% as a result of electrolytic plasma nitriding. Thus, studies have demonstrated the feasibility and applicability of electrolytic-plasma nitriding in order to improve cutting tools work resource, working under friction and wear conditions.

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“…It is established that cathode PEN of high-speed steel R6M5 in the carbamide solution results in the increase of abrasive wear resistance [71]. The anode PEN followed by quenching also increases the wear resistance of medium carbon steels [2].…”

Section: High-speed Steelsmentioning

confidence: 99%

Plasma electrolytic saturation of steels with nitrogen and carbon

Белкин

Yerokhin

Кусманов

2016

Surface and Coatings Technology

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Studies in plasma electrolysis resulted in development of various surface treatments for metal components. These treatments include formation of protective ceramic layers on some metals (e.g. oxide coatings), saturation of metal surfaces with interstitial elements (e.g. nitrogen, carbon and boron), and plasma electrolytic deposition of extrinsic compounds, heat-treatments (e.g. hardening and annealing), surface cleaning and polishing. The main advantages of plasma electrolytic treatments are high processing speeds and low costs. The treatments enable production of surface nanostructures and local area processing. This review examines recent results in plasma electrolytic carburising, nitriding, and nitrocarburising (as the most common diffusion-based treatments), including treatment modes, electrolyte compositions, structures, and properties of hardened materials. Analysis of the results obtained up to date indicates that pulse plasma electrolytic saturation treatments leading formation of surface nano-structures appear to be the most promising to advance further this type of electrolytic plasma technology. Moreover, electrolytic plasma treatments provide considerable research interest in terms of fundamental science, in particular for development of models of heat transfer on flat vertically or horizontally oriented surfaces and electrochemical processes occurring in the studied systems. These processes include stages of liberation of saturating components, adsorption of active atoms, and their diffusion into the metal surface; therefore understanding associated kinetics and limiting factors is important for gaining proper control over these surface treatments.

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Electrolyte Plasma Nitriding of High-Speed Steel

Cited by 21 publications

References 1 publication

Evaluation of tribotechnical properties of modified surfaces after plasma electrolytic treatment

Evaluation of tribotechnical properties of modified surfaces after plasma electrolytic treatment

Wear-Resistance of Nitrided W-Mo-High Speed Steel in Abrasive Wear Conditions

Plasma electrolytic saturation of steels with nitrogen and carbon

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