Preparation method of nickel-based wrought superalloy wheel disk forgings used at high temperature
US12270097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Sep 28, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C30/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention provides a preparation method of a nickel-based wrought superalloy wheel disk forging used at high temperature, in which the alloy has high content of solution strengthening elements W, Mo and strengthening phase γ′ phase forming elements Al, Ti, Nb and γ′ phase content reaches 55-65%. In view of a series of technical problems caused by high γ′ phase to alloy smelting and forging, the high-temperature stress relief annealing, low-temperature stress relief annealing process of steel ingot and high temperature homogenizing annealing of steel bar were proposed by optimizing the thermal process of wheel disk forging and controlling the precipitation and dissolution of γ′ phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.