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EP 3 701 055 A1

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(43) Date of publication: 02.09.2020 Bulletin 2020/36 (21) Application number: 18793483.1 (22) Date of filing: 19.10.2018

(51) International Patent Classification (IPC):  C23C 2/02(2006.01) C23C 2/40(2006.01) C25D 3/22(2006.01) C23C 14/16(2006.01) C23C 2/06(2006.01) C25D 3/12(2006.01) C23C 28/02(2006.01) (86) International application number: PCT/IB2018/058157 (87) International publication number: WO 2019/082037 (02.05.2019 Gazette 2019/18)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 24.10.2017 WO PCT/IB2017/001281 (71) Applicant: ArcelorMittal 1160 Luxembourg (LU)

(72) Inventors: BERTHO, Pascal 57283 Maizières-lès-Metz Cedex (FR) CHAKRABORTY, Anirban Saint John, Indiana 46373 (US) GHASSEMI-ARMAKI, Hassan Schererville, IN 46375 (US) ALLELY, Christian 57000 Metz (FR) MACHADO AMORIM, Tiago 57050 Longeville les Metz (FR) CHALEIX, Daniel 57420 Verny (FR) (74) Representative: Plaisant, Sophie Marie  ArcelorMittal France Research & Development Intellectual Property 6, rue André Campra Immeuble Le Cézanne 93200 Saint-Denis 93200 Saint-Denis (FR)