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Coatings 2017, 7(4), 54; doi:10.3390/coatings7040054

Erosion Wear Investigation of HVOF Sprayed WC-10Co4Cr Coating on Slurry Pipeline Materials

1
Department of Mechanical Engineering; Guru Jambheshwar University of Science & Technology, Hisar 125001, India
2
Department of Mechanical Engineering; Thapar University, Patiala 147004, India
*
Author to whom correspondence should be addressed.
Academic Editor: James Kit-hon Tsoi
Received: 19 February 2017 / Revised: 28 March 2017 / Accepted: 29 March 2017 / Published: 12 April 2017
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Abstract

In the present work, erosion wear due to slurry mixture flow has been investigated using a slurry erosion pot tester. Erosion tests are conducted on three different slurry pipe materials, namely, mild steel, SS202, and SS304, to establish the influence of rotational speed, concentration, and time period. In order to increase erosion wear resistance, a high-velocity oxy-fuel (HVOF) coating technique is used to deposit a WC-10Co4Cr coating on the surface of all piping materials. Experimental results show that rotational speed is a highly-influencing parameter for the erosion wear rate as compared to solid concentration, time duration, and weighted mean diameter. WC-10Co4Cr HVOF coating improved the erosion resistance of piping materials up to 3.5 times. From experimental data, the exponents of solid concentration, velocity, and the size of particles are calculated for the empirical erosion wear equation. A functional equation of the erosion wear rate is developed. The predicted erosion wear is in agreement with the experimental data and found to be within a deviation of ±12%. View Full-Text
Keywords: erosion wear; bottom ash; slurry pipe materials; powder coating erosion wear; bottom ash; slurry pipe materials; powder coating
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Kumar, K.; Kumar, S.; Singh, G.; Singh, J.P.; Singh, J. Erosion Wear Investigation of HVOF Sprayed WC-10Co4Cr Coating on Slurry Pipeline Materials. Coatings 2017, 7, 54.

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