公开(公告)号：US20250003046A1

公开(公告)日：2025-01-02

申请号：US18800464

申请日：2024-08-12

Applicant: ArcelorMittal

Inventor： Clément PHILIPPOT ,  Doriane Serra ,  Hubert Salmon Legagneur ,  David Dussaussois

IPC: C23C2/12 ,  B21D22/02 ,  B32B15/01 ,  C21D6/00 ,  C21D8/02 ,  C21D9/46 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C23C2/02 ,  C23C2/28 ,  C23C2/40

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 ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition: 1 ⁢ 6 ≤ E pc