Effect of alloying elements on aqueous corrosion of nickel-based alloys at high temperatures: A review

Abstract

Nickel-based alloys are well-known multicomponent alloys with a composition carefully balanced to provide the desired properties for various industrial applications. While these alloys are corrosion resistant, under severe conditions corrosion can still occur, which can result in serious damage to a system in operation. To improve their reliability, the composition of nickel-based alloys can be tailored to particular operating conditions. To improve their corrosion resistance, alloying elements such as chromium, molybdenum (+tungsten), and copper can be added, which promote the oxide formation process and thereby contribute to oxide passivity. This paper reviews and draws conclusions from existing literature on nickel-based alloy corrosion and oxide formation in high-temperature environments.