Cr-based alloy having an excellent strength-ductility balance at high temperature
US8685315B2 · kind B2 · utility
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Key dates
| Filing date | Aug 26, 2005 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Jan 11, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/18
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A strength-ductility balance at a high temperature above 1000° C., particularly a high temperature above 1050° C. is improved by rendering a chemical composition of Cr-based alloy into Cr: more than 60 mass % but less than 65 mass %, C+N: not more than 20 mass ppm, S: not more than 20 mass ppm, O: not more than 100 mass ppm, O as an oxide: not more than 50 mass ppm, and the remainder being Fe and inevitable impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.