Hot press-formed part
US11028469B2 · kind B2 · utility
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16Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 16, 2016 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Mar 1, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hot press-formed part according to an aspect of the present invention contains a predetermined chemical composition; in which a microstructure in a thickness ¼ portion includes, by unit vol %, tempered martensite: 20% to 90%, bainite: 5% to 75%, and residual austenite: 5% to 25%, and ferrite is limited to 10% or less; and a pole density of an orientation {211}<011> in the thickness ¼ portion is 3.0 or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.