The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2025
Filed:
Feb. 09, 2024
Arcelormittal, Luxembourg, LU;
Clément Philippot, Ennery, FR;
Doriane Serra, Talange, FR;
Hubert Salmon Legagneur, Paris, FR;
David Dussaussois, Homecourt, FR;
ArcelorMittal, Luxembourg, LU;
Abstract
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating eand the thickness of the interdiffusion layer esatisfy the following condition: The hot-stamped coated steel part comprises an undeformed portion having a thickness efrom 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dC(e) defined as: