Ni-based heat resistant alloy, gas turbine component and gas turbine
US8685316B2 · kind B2 · utility
3Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2011 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Sep 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A Ni-based heat resistant alloy has a composition of, by mass percent, carbon: 0.001 to 0.1%, chromium: 16 to 22%, aluminum: 0.5 to 1.5%, molybdenum: 0.1 to 2.0%, tungsten: 0.1 to 6.0%, niobium: 3.5 to 5.5%, titanium: 0.8 to 3.0%, iron: 16 to 20%, and the balance being nickel and inevitable impurities. A parameter Ps indicating a segregation tendency is in a range of Ps≧−3.5. The parameter Ps is represented by Formula (1).Ps=1.05×Al content+0.6×Ti content−0.8×Nb content−0.3×Mo content (1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.