| 摘要 |
<p>Disclosed is a Ni-based monocrystalline superalloy having a composition comprising 0.1 to 9.9 mass% inclusive of Co, 5.1 to 10.0 mass% inclusive of Cr, 1.0 to 4.0 mass% inclusive of Mo, 8.1 to 11.0 mass% inclusive of W, 4.0 to 9.0 mass% inclusive of Ta, 5.2 to 7.0 mass% inclusive of Al, 0.1 to 2.0 mass% inclusive of Ti, 0.05 to 0.3 mass% inclusive of Hf, 1.0 mass% or less of Nb, and less than 3.0 mass% of Re, with the remainder being Ni and unavoidable impurities. The Ni-based monocrystalline superalloy contains Re at a small content and has excellent high-temperature strength mainly including creep strength.</p> |
