Plasma Sprayed Copper-Nickel-Indium Coatings on Titanium Alloys

Abstract

Copper-nickel-indium coatings were deposited on the surface of titanium alloy specimens by plasma spraying. The structure and properties of the coatings were studied thoroughly using optical and scanning electron microscopy. The mechanical behavior of the Cu-Ni-In coated titanium substrates was examined. The coating was found to decrease the tensile strength of the titanium alloy substrate. The elastic modulus and the ultimate tensile strength of the coated system were found to decrease with increasing coating thickness. The residual stresses of the coated system were also calculated.