“…The TOPSIS method was used by A. Chauhan and R. Vaish 27 for the selection of the best alternative among hard coatings based on their hardness, Young's modulus, thermal expansion coefficient, H/E and H 3 /E 2 ratios. H. Çalýþkan et al 24 used EXPROM2, TOPSIS and VIKOR methods to select the best coating material among a variety of multicomponent nanostructured boron-based hard coatings deposited using magnetron-sputtering and ion-implementation-assisted magnetron-sputtering methods in consideration of their hardness, Young's modulus, elastic recovery, friction coefficient, and critical load.…”