Intermediate strength alloys for high temperature service in liquid-salt cooled energy systems
US9683280B2 · kind B2 · utility
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Key dates
| Filing date | Jan 10, 2014 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Jan 10, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/057
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alloy consists essentially of, in terms of weight percent: 6 to 8.5 Cr, 5.5 to 13.5 Mo, 0.4 to 7.5 W, 1 to 2 Ti, 0.7 to 0.85 Mn, 0.05 to 0.3 Al, up to to 0.1 Co, 0.08 to 0.5 C, 1 to 5 Ta, 1 to 4 Nab, 1 to 3 Hf, balance Ni. The alloy is characterized by, at 850° C., a yield strength of at least 36 Ksi, a tensile strength of at least 40 Ksi, a creep rupture life at 12 Ksi of at least 72.1 hours, and a corrosion rate, expressed in weight loss [g/(cm2sec)]×10−11 during a 1000 hour immersion in liquid FLiNaK at 850° C., in the range of 8 to 25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.