Wear behavior of gas tungsten arc deposited FeCr, FeCrC, and WC coatings on AISI 1018 steel

Study to evaluate the abrasive wear resistant behavior of materials coated with Fe-Cr-Si-C

“…The chromium content of the matrix of the chromium alloyed steel surfaces decreases with an increase in the carbon content [14]. A decrease in the chromium content of the matrix has two important effects.…”

“…In recent years, the in-situ synthesis of the M 7 C 3 carbide that reinforced existing composite surfaces in the metal matrix, which were produced by subjecting a liquid FeCrC ferro-alloy to the process of high temperature synthesis, and the surface alloy to the gas tungsten arc welding (GTAW), and the plasma and laser beam techniques generated much interest world-wide [10][11][12][13][14][15]. These techniques revealed that the dc -max depth below the original substrate surface, hc -max hight above the original substrate surface, tc -max total thickness (dc + hc), wc -max width, HV -average of three measurement interfacial incompatibility of matrices was eliminated by creating more thermodynamically stable reinforcements based on their nucleation and growth from the matrix phase of the parent [16].…”

“…Some studies in the past also revealed that a tungsten inert gas heat source had the potential to be effectively used for carrying out surface modification [17,18]. However, in this GTAW method, too, some problems do persist owing to the roughness and thickness of the surface of the heat affected zone [14]. On the other hand, the plasma and laser beam method is quite expensive and difficult in comparison with the complex components entailed in the GTAW method [14,15].…”

“…However, in this GTAW method, too, some problems do persist owing to the roughness and thickness of the surface of the heat affected zone [14]. On the other hand, the plasma and laser beam method is quite expensive and difficult in comparison with the complex components entailed in the GTAW method [14,15]. Recently, the GTAW melting process has been widely employed to achieve surface composite coatings, wherein the alloying powders were externally fed to a melting bath and a thin surface layer was simultaneously melted and then solidified [17].…”

“…Recently, the GTAW melting process has been widely employed to achieve surface composite coatings, wherein the alloying powders were externally fed to a melting bath and a thin surface layer was simultaneously melted and then solidified [17]. The wearresistant behavior of a coating highly enriched with Cr is a function of its chemical composition as well as the conditions entailed in the processing procedure; therefore, each coated surface must be evaluated with respect to these variables, as well as the related tribological environment [10][11][12][13][14][15][16][17]. The important micro--structural parameters that are considered significant in influencing the ability of the coating material to resist wear-resistance include the quantity, orientation, and morphology of the carbides present in them [15][16][17][18][19][20], the kind of matrix found within them [20], and the overall structure of the coatings [15,16].…”