Methods for processing nanostructured ferritic alloys, and articles produced thereby
US8357328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2009 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Jan 13, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A formed article comprising a nanostructured ferritic alloy is provided. Advantageously, the article is not formed via extrusion, and thus, cost savings are provided. Methods are also provided for forming the article, and the articles so produced, exhibit sufficient continuous cycle fatigue crack growth resistance and hold time fatigue crack growth resistance to be utilized as turbomachinery components, and in particular, large, hot section components of a gas or steam turbine engines. In other embodiments, a turbomachinery component comprising an NFA is provided, and in some such embodiments, the turbomachinery component may be extruded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.