Turbocharger turbine housings formed from the stainless steel alloys, and methods for manufacturing the same
US9534281B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jul 31, 2014 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Jan 15, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/177
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is an austenitic stainless steel alloy that includes, by weight, about 22% to about 28% chromium, about 3.5% to about 6.5% nickel, about 1% to about 6% manganese, about 0.5% to about 2.5% silicon, about 0.3% to about 0.6% carbon, about 0.2% to about 0.8% niobium, about 0.2% to about 0.8% nitrogen, and a balance of iron. Molybdenum and tungsten are excluded. The alloy is suitable for use in turbocharger turbine housing applications for temperature up to about 980° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.