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Nenastina TA, Ved’ MV, Sakhnenko ND, Proskurina VO. Effect of Electrolysis Conditions on the Composition and Microhardness of Ternary Cobalt Alloy Coatings. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2021. [DOI: 10.3103/s1068375521010099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Belevskii SS, Gotelyak AV, Yushchenko SP, Dikusar AI. Electrodeposition of Nanocrystalline Fe—W Coatings from a Citrate Bath. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2019. [DOI: 10.3103/s1068375519020054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ved’ M, Sakhnenko N, Yermolenko I, Yar-Mukhamedova G, Atchibayev R. Composition and. EURASIAN CHEMICO-TECHNOLOGICAL JOURNAL 2018. [DOI: 10.18321/ectj697] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Principles of three component Iron-Cobalt-Tungsten alloys electrodeposition from complex Fe (III) based citrate electrolytes are discussed. It is shown, that deposition of ternary alloys proceeds through competitive reduction of cobalt and tungsten with iron. With increasing ligand concentration coatings are enriched with a refractory component; however, increasing current density favors a reverse trend. The effect of both current density and pulse on/off time on the quality, content of alloying metals and surface topography of electrolytic coatings were determined. The application of pulsed electrolysis provides increasing tungsten content up to 13 at.%, at current efficiency of 70–75%. Globular relief of Fe-Co-W coatings is caused by refractory metals incorporation, and crystalline and amorphous parts of structure are visualized by X-ray spectroscopy, including inter-metallic phases Co7W6, Fe7W6 along with α-Fe and Fe3C. The crystallite size of the amorphous part is near 7–8 nm. Corrosion resistance of the coatings is 1.3–2.0 orders of magnitude higher than the substrate parameters as follows from data of polarization resistance method and electrode impedance spectroscopy.
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Ved’ MV, Ermolenko IY, Sakhnenko ND, Zyubanova SI, Sachanova YI. Methods for controlling the composition and morphology of electrodeposited Fe–Mo and Fe–Co–Mo coatings. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2017. [DOI: 10.3103/s1068375517060138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Silkin SA, Gotelyak AV, Tsyntsaru NI, Dikusar AI. Size effect of microhardness of nanocrystalline Co-W coatings produced from citrate and gluconate solutions. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2015. [DOI: 10.3103/s106837551503014x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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