The Paton Welding Journal, 2022, №12



2022 №12 (04)

DOI of Article 10.37434/tpwj2022.12.05

2022 №12 (06)

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The Paton Welding Journal, 2022, #12, 35-39 pages

Corrosion strength of plasma coatings based on composite powders with FeAl intermetallic

N.V. Vigiliаnska¹, O.P. Gryshchenko¹, K.V. Iantsevitch¹, Z.G. Ipatova¹, C. Senderowski²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: pewinataliya@gmail.com
²Warsaw University of Technology. Warsaw Polytechnic University. plac Politechniki 1, 00-661 Warsaw, Poland. E-mail: cezary.senderowski@uwm.edu.pl

Abstract
The corrosion strength of plasma coatings made of composite powders based on FeAl intermetallic in different corrosive environments was investigated. For deposition of coatings, powders based on FeAl intermetallic were used, which was produced by mechanochemical synthesis with the introduction of additional alloying elements of titanium and magnesium into their composition. Electrochemical tests of plasma coatings were performed by a potentiostatic method in a 3% NaCl solution and in a 10% H2SO4 solution. It was revealed that the rate of the corrosion process of plasma coatings of FeAl system depends on the nature of electrolyte and the mechanism of electrochemical process. Electrochemical studies of plasma coatings of FeAl system showed that corrosion strength in a 3% NaCl solution is by an order higher than in a 10 % H2SO4 solution. It was found that introduction of alloying element of titanium to the composite coating based on FeAl intermetallic results in a 2-5 times increase in corrosion strength of coatings in a 10 % H2SO4 solution. It was shown that plasma coatings based on FeAl intermetallic on a scale of corrosion strength in a 3% NaCl solution are in the “resistant” group. The electrochemical studies showed the ability of these protective coatings to operate in salty neutral solutions. 18 Ref., 3 Tabl., 2 Fig.
Keywords: intermetallics, iron, aluminium, composite powder, plasma coatings, corrosion strength

Received: 13.09.2022
Accepted: 30.01.2023

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Suggested Citation

N.V. Vigiliаnska, O.P. Gryshchenko, K.V. Iantsevitch, Z.G. Ipatova, C. Senderowski (2022) Corrosion strength of plasma coatings based on composite powders with FeAl intermetallic. The Paton Welding J., 12, 35-39.

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