ALLOY MATERIAL HAVING HIGH-TEMPERATURE CORROSION RESISTANCE, HEAT-SHIELDING COATING MATERIAL, TURBINE MEMBER, AND GAS TURBINE

摘要

Disclosed are: an alloy material having high-temperature corrosion resistance, which has excellent oxidation resistance and ductibility and is applicable to a gas turbine that is used at an ultra-high temperature; and a heat-shielding coating material, a turbine member and a gas turbine, each of which comprises the alloy material. Specifically disclosed is an alloy material having high-temperature corrosion resistance, which comprises the following components (by weight): Co: 15-30%, Cr: 10-30%, Al: 4-15%, Y: 0.1-3%, and Re: 0.1-1%, with the remainder being substantially Ni. Also specifically disclosed is an alloy material having high-temperature corrosion resistance, which comprises the following components (by weight): Ni: 20-40%, Cr: 10-30%, Al: 4-15%, Y: 0.1-3%, and Re: 0.1-5%, with the remainder being substantially Co.