Title: Structure, phases and tribological behaviour of Fe-based self-fluxing alloy coatings formed by plasma spraying and follow-up flame and laser remelting

Authors: Eugene Feldshtein; Marharyta Kardapolava; Olga Dyachenko

Addresses: Department of Mechanical Engineering, University of Zielona Góra, Prof. Z. Szafrana 4, 65-516 Zielona Góra, Poland ' Faculty of Mechanical Engineering, Belarusian National Technical University, Khmelnitsky Str., 9, Build. 6, 220013, Minsk, Belarus ' Marketing, Management and Entrepreneurship Faculty, Belarusian National Technical University, Nezavisimosty Ave, 65, Build. 18a, 220013, Minsk, Belarus

Abstract: This paper analyses the influence of the type of thermal spraying and processing conditions on the structure, phases and tribological behaviour of Fe-based self-fluxing alloy coatings. Two processes are studied: plasma spraying combined with flame remelting and plasma spraying combined with laser remelting. The type of remelting affects the structure and phases composition of Fe-based coating significantly. The laser beam velocity influences the alloy structure changes considerably. These changes affect the microhardness of the coating. The types of remelting influences the average and momentary friction coefficients as well as relative wear rates of the coating.

Keywords: Fe-based self-fluxing alloy coatings; iron; plasma spraying; laser remelting; alloy structure; phase composition; microhardness; friction coefficients; wear rates; flame remelting; tribology; thermal spraying; laser beam velocity.

DOI: 10.1504/IJSURFSE.2015.072059

International Journal of Surface Science and Engineering, 2015 Vol.9 No.5, pp.395 - 406

Received: 23 Oct 2013
Accepted: 29 Aug 2014
Published online: 30 Sep 2015 *

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