High strength austenitic TRIP steel
US8092620B2 · kind B2 · utility
3Cited by
1References
10Claims
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Key dates
| Filing date | Jul 20, 2009 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Jul 20, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/54
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An austenitic TRIP steel consisting essentially of, in weight %, 0.14 to 0.18% Al, 2.8 to 3.2% Ti, 23.5 to 23.8% Ni, 3.8 to 4.2% Cr, 1.1 to 1.3% Mo, 0.29 to 0.31% V, 0.01 to 0.015% B, 0.01 to 0.02% C, and balance Fe and incidental impurities exhibits combined high yield strength and high strain hardening leading to improved stretch ductility under both tension and shear dynamic loading conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.