Journal
TRIBOLOGY TRANSACTIONS
Volume 56, Issue 2, Pages 196-202Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10402004.2012.737503
Keywords
Erosion Wear; Plasma Spray Coating; Copper Slag; Taguchi Experimental Design
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This article depicts the solid particle erosion response of plasma-sprayed composite coatings using an industrial waste product (i.e., copper slag) and aluminum. The influence of five operating parametersthat is, impact velocity, erodent size, erodent temperature, impingement angle, and aluminum content of feedstock with four different levels eachon performance output (i.e., erosion rate) are studied using Taguchi's L16 orthogonal array design. Out of the five parameters, impact velocity has been found to be most influential factor on the erosion wear rate of coated samples. Maximum erosion takes place at an impingement angle of 60 degrees, showing the semiductile response of the coating to solid particle erosion. In addition, a multilinear mathematical equation is proposed in order to predict the wear rate. The percentage of error between experimental data and predicted data was small, with a very high correlation coefficient (r2) of 0.997 showing the correctness of the mathematical equation used.
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