Comparative study of the wear resistance of three metal-fluxed core wire-welded coatings used in industry

Metal alloys deposited by welding on the surface of components with the objective of protection against wear and resulting in an increase in the lifetime of parts and equipment have been used extensively in the consumer products industry and sectors of mining and sugar-ethanol. The abrasive wear on...

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Bibliographic Details
Published in:Welding international 2011-12, Vol.25 (12), p.917-922
Main Authors: de Melo Leite, Ricardo Vinicius, Marques, Paulo Villani
Format: Article
Language:English
Subjects:
abrasive wear
Alloys
Coatings
Comparative studies
Core wire
Deposition
Electrical equipment
Electrodes
Fe-Cr-C alloy
Ferrous alloys
fluxed core wire
hardfacing
Protective coatings
rubber wheel testing
Wear resistance
Welding
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Summary:Metal alloys deposited by welding on the surface of components with the objective of protection against wear and resulting in an increase in the lifetime of parts and equipment have been used extensively in the consumer products industry and sectors of mining and sugar-ethanol. The abrasive wear on parts and equipment represents one of the main depreciation factors of capital and the major cause of expenditure of maintenance in industries. To apply coating by welding, fluxed core wire has been a viable alternative because of its high productivity and high-weld quality, replacing in part the use of the stick electrode. The objective of this paper is to make a comparative study of the abrasive wear-resistant coating deposited by welding with self-shielded fluxed core wires of three metal alloys used in industry, firstly Fe-Cr-Co alloy, secondly Fe-Cr-C alloy with niobium and boron addition[s], and thirdly Fe-Cr-C with niobium addition. Wear-resistant coatings, known as hardfacing, were deposited on carbon steel plates with the same welding parameters and procedures. Samples were obtained by cutting and grinding, and were subjected to abrasive wear tests in a Rubber Wheel apparatus according to the procedure established by ASTM G65-91. The results showed that Fe-Cr-C alloy with niobium and boron addition[s] (presented superiority in terms of wear resistance) was superior in terms of resistance to wear.
ISSN:0950-7116
1754-2138
DOI:10.1080/09507116.2010.527482