Nickel-base single-crystal superalloys, method of manufacturing same and gas turbine high temperature parts made thereof
US6673308B2 · kind B2 · utility
116Cited by
10References
21Claims
0Family size
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Key dates
| Filing date | Aug 30, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Aug 30, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A nickel-base single-crystal superalloy, essentially consists of, in percentages by weight, 4.0% to 11.0% of cobalt, 3.5% to less than 5.0% of chromium, 0.5% to 3.0% of molybdenum, 7.0% to 10.0% of tungsten, 4.5% to 6.0% of aluminum, 0.1% to 2.0% of titanium, 5.0% to 8.0% of tantalum, 1.0% to 3.0% of rhenium, 0.01% to 0.5% of hafnium, 0.01% to 0.1% of silicon, and a balance being nickel and inevitable impurity, a total amount of rhenium and chromium being not less than 4.0% and a total amount of rhenium, molybdenum, tungsten and chromium being not more than 18.0%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.