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(11)

EP 3 491 157 A1

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(43) Date of publication: 05.06.2019 Bulletin 2019/23 (21) Application number: 17835176.3 (22) Date of filing: 26.07.2017

(51) International Patent Classification (IPC):  C22C 1/02(2006.01) C22C 21/00(2006.01) F27B 14/04(2006.01) C22C 14/00(2006.01) C22C 30/00(2006.01) F27B 14/08(2006.01) (86) International application number: PCT/US2017/043882 (87) International publication number: WO 2018/022712 (01.02.2018 Gazette 2018/05)

(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: MA MD (30) Priority: 28.07.2016 US 201662368113 P (71) Applicant: Arconic Inc. Pittsburgh, PA 15212-5858 (US)	(72) Inventors: SAMPLE, Vivek M. Murrysville Pennsylvania 15668 (US) CHU, Men Glenn Export Pennsylvania 15632 (US) KRUZYNSKI, Mark T. Export Pennsylvania 15632 (US) SULLIVAN, Shawn P. Oakmont Pennsylvania 15139 (US) (74) Representative: Trinks, Ole  Meissner Bolte Patentanwälte Rechtsanwälte Partnerschaft mbB Postfach 10 26 05 86016 Augsburg 86016 Augsburg (DE)