| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-temperature member with a coating applied thereon, which can suppress mutual diffusion of elements occurring through a base material/alloy phase boundary even at high temperature of≥1,100°C. SOLUTION: As an Rh-containing Ni-based superalloy used for a heat resistant member such as a turbine rotor blade and a turbine stator blade, the one having components comprising, by weight, 1.0 to 10.0% Al and 0.1 to 10.0% Rh, and, if required, further comprising Ta, Mo, W, Re, Cr, Nb or the like, and the balance Ni with inevitable impurities is used. A heat resistant member coated with at least one alloy phase selected from aγphase, aγ' phase and aβphase having a composition thermodynamically in equilibrium with the above base material alloy, and having excellent oxidation resistance, high temperature corrosion resistance, mechanical properties or the like can be obtained. COPYRIGHT: (C)2008,JPO&INPIT
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