Oxidation behavior of 4774DD1 Ni-based single-crystal superalloy at 980 °C in air

Abstract

Ni-based single-crystal superalloys have been extensively utilized in aero-engines for the production of hot-end components due to their excellent high-temperature mechanical properties [1][2][3][4] . In the pursuit of heightened thermal efficiency, single-crystal superalloys are progressively being introduced into industrial gas turbines (IGTs) [5][6][7] to fabricate single-crystal blades, thereby enhancing the turbine front-end temperature. Although the blades are generally used in coated condition and the thermal barrier coatings can improve the oxidation