Heat-resistant Ni-base alloy and method of producing the same
US10081855B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 11, 2014 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | May 7, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is a heat-resistant Ni-base alloy including a Ni—Ir—Al—W alloy having essential additive elements of Ir, Al, and W added to Ni, wherein the heat-resistant Ni-base alloy includes Ir: 5.0 to 50.0 mass %, Al: 1.0 to 8.0 mass %, and W: 5.0 to 20.0 mass %, the balance being Ni, and a γ′ phase having an L12 structure disperses in a matrix as an essential strengthening phase. The heat-resistant material including the Ni-base alloy may contain one or more additive elements selected from B: 0.001 to 0.1 mass %, Co: 5.0 to 20.0 mass %, Cr: 1.0 to 25.0 mass %, Ta: 1.0 to 10.0 mass %, Nb: 1.0 to 5.0 mass %, Ti: 1.0 to 5.0 mass %, V: 1.0 to 5.0 mass %, and Mo: 1.0 to 5.0 mass %, or 0.001 to 0.5 mass % of C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.