Methods of making bainitic steel materials
US9869000B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Dec 10, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Jan 15, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods of making bainitic steels may involve austenitizing a quantity of steel by exposing the quantity of steel to a first temperature. A composition of the quantity of steel may be configured to impede formation of non-bainite ferrite, pearlite, and Widmanstätten ferrite. The quantity of steel may be heat-treated to form bainite by exposing the quantity of steel to a second, lower temperature. The second, lower temperature may be stabilized by exposing the quantity of steel to the second, lower temperature in the presence of a thermal ballast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.