Effect of HVOF coatings on abrasive wear behaviour of martensitic stainless steel Online publication date: Tue, 30-Aug-2022
by Sachin Tejyan; Sumit Rana; Amar Patnaik
International Journal of Materials Engineering Innovation (IJMATEI), Vol. 13, No. 3, 2022
Abstract: The purpose of this work is to study the effect of HVOF coatings on the hardness and abrasive wear behaviour of martensitic stainless steel. Three types of powders, i.e., WTiC-Ni, WC-Co-Cr, and Cr3C2Ni-Cr are used for thermal sprayed HVOF coatings. The abrasive wear behaviour of coated martensitic stainless steel is characterised by varying wheel speed (100 rpm, 150 rpm, 200 rpm, and 250 rpm), abrading distance (1,000 m, 2,000 m, 3,000 m and 4,000 m), and load (10 N, 20 N, 30 N, and 40 N). Taguchi designs have also been implemented to examine the effect of control factors, i.e., type of coating, speed, and load. Experimental results reveal that the wear resistance of coated martensitic stainless steel improves with each type of coating. Experimental results also show that the abrasive wear resistance of the WC-Co-Cr powder-coated martensitic stainless steel surface is highest as compared to other coatings, i.e., Cr3C2Ni-Cr and WTiC-Ni.
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