Hold and cool process for superalloy joining
US9347124B2 · kind B2 · utility
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3References
10Claims
0Family size
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Key dates
| Filing date | Jun 6, 2012 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Oct 24, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/477
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Ni base superalloys containing relatively large amounts of Al and/or Ti are known to be difficult to weld satisfactorily. As the Al and Ti content of the superalloy is increased to improve the strength, the weldability of the component is drastically reduced. It is concluded herein that reducing the γ′ phase improves weldability. A stepwise, controlled heating and cooling process is described to be used in cooperation with a welding process to reduce the γ′ present and thereby improve weldability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.