Heat treatment and stress relief for solid-state welded nickel alloys
US10946476B2 · kind B2 · utility
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Key dates
| Filing date | May 11, 2017 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Mar 27, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12861
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.