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Coatings 2017, 7(6), 80; doi:10.3390/coatings7060080

Development of a TiC/Cr23C6 Composite Coating on a 304 Stainless Steel Substrate through a Tungsten Inert Gas Process

1
Department of Mechanical Engineering, Eastern Mediterranean University, Gazimagusa, North-Cyprus, Gazimağusa, TRNC, Mersin 10, Turkey
2
Faculty of Mechanical Engineering, GIK Institute of Engineering Sciences & Technology, Topi 23640, Pakistan
*
Author to whom correspondence should be addressed.
Academic Editors: Sylvester Abanteriba and Subir Ghosh
Received: 14 February 2017 / Revised: 10 May 2017 / Accepted: 11 May 2017 / Published: 14 June 2017
(This article belongs to the Special Issue Advanced Ceramic Coatings and Interfaces)
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Abstract

The aim of this study was to develop a composite coating on 304 stainless steel employing a TIG (tungsten inert gas) process. Ti wire cored with graphite powder was used as the means of coating material. The process parameters were controlled to develop a coating with optimum characteristics (i.e., hardness and wear resistance). The microstructure of the coating was analyzed with SEM and XRD. It was found that both the hardness and the wear resistance increase as the current increases, while both of these properties decrease as travelling speed increases. It was found that the coated samples with composite layers were harder than the substrate and can range up to 1100 HV, almost 4.5 times higher than the hardness of 304 stainless steel. Likewise, the wear resistance of the coating was observed to be 4.5 times higher than that of the substrate. The high performance of the coating, as revealed by microstructural analysis, was due to the formation of TiC and Cr23C6.The optimum conditions for producing the coating are thus proposed to include a 120 A current and a 3.17 mm/s travel speed. View Full-Text
Keywords: TIG (tungsten inert gas) process; composite coating; SS 304; hardness; wear resistance TIG (tungsten inert gas) process; composite coating; SS 304; hardness; wear resistance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Heidarshenas, B.; Hussain, G.; Asmael, M.B.A. Development of a TiC/Cr23C6 Composite Coating on a 304 Stainless Steel Substrate through a Tungsten Inert Gas Process. Coatings 2017, 7, 80.

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