Formation of thick layer electro-spark coatings for restoring worn-out parts of power hydraulic cylinders

Величко, С. А.; Senin, Petr V.; Иванов, В. И.; Martynov, A. V.; Chumakov, P. V.

doi:10.3103/s1068375517020119

Cited by 12 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…One of the characteristic features of the ESA method is the limitation in the thickness of the formed surface layer. According to [29], the research by the scientists and specialists in the near and far abroad is mainly aimed at creating new electrode materials for ESA, studying the structure and properties of the coatings [30][31][32][33][34][35][36], but there is a limited amount of information on the technologies…”

Section: Formulation Of the Problem Analysis Of The Main Achievements...mentioning

confidence: 99%

Assessment of Hydroabrasive Wear Resistance of Construction Materials with Functional Coatings, which are Formed by Resource-Saving and Environmentally Friendly Technologies

Tarelnyk

Коноплянченко

Гапонова

et al. 2020

KEM

View full text Add to dashboard Cite

The work presented in this paper is devoted to the formation of thick-layer wear-resistant coatings by technologies based on electrospark alloying, an example of essential components hardening for the heavy-duty processing equipment operating under hydroabrasive wear conditions. The aim of the paper is to improve the manufacturing and repairing technologies for the helical surfaces of the screws made of 65Г, 30X13 and 40X steels and corrosion-resistant stainless steel 12X18H10T. The above aim has been achieved owing to applying the new environmentally friendly technologies for the formation of the surface layers, and also due to the choice of the surface layers that are most resistant against hydroabrasive wear, which choice being provided for by conducting the comparative tests on the samples made of the above said steel grades and strengthened in various ways. The analysis results of the hydroabrasive wear resistance of the samples made of steel and provided with protective coatings is presented.

show abstract

Section: Formulation Of the Problem Analysis Of The Main Achievements...mentioning

confidence: 99%

Assessment of Hydroabrasive Wear Resistance of Construction Materials with Functional Coatings, which are Formed by Resource-Saving and Environmentally Friendly Technologies

Tarelnyk

Коноплянченко

Гапонова

et al. 2020

KEM

View full text Add to dashboard Cite

show abstract

“…Н. П. Огарёва. Данные исследования посвящены эрозии в зависимости от физико-химических свойств электродов различных материалов в различных средах, на разных режимах и установках электроискрового легирования [3][4]. Элементы исследований этой проблемы присутствуют также в зарубежных работах, по-священных, в частности, принципам и применению электроискрового легирования [5], получению электроискровых эпитаксиальных покрытий [6], а также использованию при электроискровом легировании графитовых электродных материалов [7].…”

Section: Mordovia University Bulletinunclassified

Effect of the Nature of Electrode Materials on Erosion and Properties of Doped Layers. The Criteria for Evaluating the Effectiveness of Electrospark Alloying

Verkhoturov

Иванов

Dorokhov

et al. 2018

VMU

View full text Add to dashboard Cite

Introduction. The method of electrospark alloying of metal surfaces was proposed by the Russian scientists B. R. Lazarenko and N. I. Lazarenko. It is possible to apply this process to the surface of the workpiece from any conductive materials of a hardened alloyed layer of material to ensure high hardness, heat resistance, wear resistance and other properties of the executive surfaces of the parts. The paper shows the possibility of formulating criteria for determining the efficiency of the electrospark alloying process and the properties of the doped layer, depending on the properties of d-elements determined by their position in the periodic table and a number of (s+d)-electrons of electrode materials. A similar approach to determining performance criteria can be recommended for other high-energy materials exposure processes. Materials and Мethods. The authors used steel 45 as the material of the rim sections and refractory d-metals of IV-VI groups: Ti, V, Cr, Zr, Nb, Vo, Hf, Ta, W; а также d-metals: Mn, Fe, Co, Ni, Cu, Zn, Pd, Ag, Cd, Re, Os, Ir, Pt, Au and p-metals: Al, Bi, Sb, Sn, Pb as anode materials for creating doped layers. The installations used for electric-spark alloying: EFI-10M, EFI-46A, EFI-25M, EFI-66, Electrom-10, ELFA-541, Elitron-22, IMEI-01-2A; Corona- 1101; microscope MII-4, MIM-10, BIOLAM-M, EMA-100, Axiosplan-2; Profiler P-201 “Caliber”; microthermometry PMT-3M, DUH-W201, Shimadzu. In the study of erosion there we used the installation of “Atovic absorption spectrophotometer, Varian AA-4”. The generator GOS-3OM and installation SLS-10-1 wer used for laser processing. Results. The generalization of the schemes of the process of electric-spark alloying in single and repeated exposure of the model anode material was made. At the cathode there is a hole with a different degree of filling of the cathode material or representing the zone of mutual crystallization of the anode material and the cathode. When exposed to spark discharge in a gaseous medium, there are differences in the formation of holes due to the more intense transfer of eroded material to the opposite electrode, especially to the cathode. Dependences of some properties (microhardness, melting point, elastic modulus) of refractory d-metals on their location in the IV–VI periods of the periodic table are obtained and presented. Dimensional and volumetric relations of d-elements in electrospark alloying were established, depending on their location in the periodic table. Dependences of the properties of model electrode materials on the statistical weight of atomic stable configurations, as well as the dependence of the erosion of the anode of transition metals on the number (s+d)- electrons and the interelectrode medium. The patterns of d-metals erosion under electrospark alloying and other types of high-energy impact to the surface have been found. Conclusions. Based on the results of this research, it can be stated that in order to achieve higher coating properties and greater efficiency of electrospark alloying, it is necessary to give preference to anodic materials having the maximum statistical weight of atomic stable configurations. It can be said that the properties of the electrode materials relate to their erosion amount and the parameters of the efficiency for forming the doped layer during electrospark alloying, which for specific conditions are determined by the method of selection of ratios and comparison with quantitative experimental data of previously established dependencies. A common approach to the formulation of criteria for imparting new properties to materials by high-energy impacting on them is possible. There is formulated a hypothesis for determining similar change dependences of the physical and operational properties of d-elements on their location in the periodic Table and the statistical weight of atomic stable configuration for various methods of local high-energy impact.

show abstract

New Process for Forming Multicomponent Wear-Resistant Nanostructures by Electrospark Alloying Method

Martsynkovskyy

Коноплянченко

Гапонова

et al. 2020

Springer Proceedings in Physics

View full text Add to dashboard Cite

Formation of thick layer electro-spark coatings for restoring worn-out parts of power hydraulic cylinders

Cited by 12 publications

References 2 publications

Assessment of Hydroabrasive Wear Resistance of Construction Materials with Functional Coatings, which are Formed by Resource-Saving and Environmentally Friendly Technologies

Assessment of Hydroabrasive Wear Resistance of Construction Materials with Functional Coatings, which are Formed by Resource-Saving and Environmentally Friendly Technologies

Effect of the Nature of Electrode Materials on Erosion and Properties of Doped Layers. The Criteria for Evaluating the Effectiveness of Electrospark Alloying

New Process for Forming Multicomponent Wear-Resistant Nanostructures by Electrospark Alloying Method

Contact Info

Product

Resources

About