公开(公告)号：US20240352573A1

公开(公告)日：2024-10-24

申请号：US18701735

申请日：2022-09-05

Applicant: ArcelorMittal

Inventor： Daniel CHALEIX ,  Véronique HEBERT ,  Fabrice LAFFINEUR ,  Vincent RUWET

IPC: C23C14/24 ,  C21D1/76 ,  C21D6/00 ,  C21D8/02 ,  C21D9/46 ,  C22C38/02 ,  C22C38/06 ,  C22C38/38 ,  C23C14/16

CPC classification number: C23C14/24 ,  C21D1/76 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0221 ,  C21D8/0247 ,  C21D9/46 ,  C22C38/02 ,  C22C38/06 ,  C22C38/38 ,  C23C14/16 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008

Abstract: A method for depositing metallic coatings on a substrate including an annealing step, in an annealing furnace, forming on said substrate, a ferritic surface layer having a thickness from 10 μm to 50 μm and a microstructure comprising in surface fraction up to 10% of cumulated amount of martensite, bainite and the balance being made of ferrite, a skin pass step, a coating step, inside a vacuum chamber, wherein a metallic vapour is ejected towards at least a side of said substrate to form a surface layer of at least one metal.