Hot-formed member and manufacturing method of same
US10266911B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Jan 6, 2014 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Oct 18, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a hot-formed member according to the present invention, having a predetermined chemical composition and having a metallographic microstructure containing austenite at an area ratio of 10 area % to 40 area % and in which total number density of particles of the austenite and martensite is equal to or greater than 1.0 number/μm2, in which tensile strength is from 900 MPa to 1300 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.