NI-BASED COMPOUND SUPERALLOY HAVING EXCELLENT OXIDATION RESISTANCE, PROCESS FOR PRODUCTION THEREOF, AND HEAT-RESISTANT STRUCTURAL MATERIAL

摘要

The present invention is characterized in including Al: more than 5 at% to 13 at% or less; V: 3 at% or more to 9.5 at% or less; and Ti: 0 at% or more to 3.5 at% or less, with the remainder being Ni and unavoidable impurities, and having a multi-phase microstructure including a primary L12 phase and an (L12 phase + D022 phase and/or D024 and/or D0a phase) eutectoid microstructure.