SUPPRESSION OF STRESS CORROSION CRACKING IN HIGH MAGNESIUM ALLOYS THROUGH THE ADDITION OF CALCIUM - Patent 4077754

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EP 4 077 754 A1

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(43)	Date of publication:
	26.10.2022 Bulletin 2022/43

(21)	Application number: 20838760.5

(22)	Date of filing: 10.12.2020

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International Patent Classification (IPC):

C22C 21/06^(2006.01)
C22F 1/047^(2006.01)

C22C 21/10^(2006.01)
C22F 1/053^(2006.01)

(52)	Cooperative Patent Classification (CPC):
	C22C 21/10; C22C 21/06; C22F 1/047; C22F 1/053

(86)	International application number:
	PCT/US2020/064283

(87)	International publication number:
	WO 2021/126665 (24.06.2021 Gazette 2021/25)

(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

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Priority:

17.12.2019 US 201962949286 P

(71)	Applicant: Novelis, Inc.
	Atlanta, GA 30326 (US)

(72)	Inventors:
	WAGSTAFF, Samuel Robert Marietta, Georgia 30066 (US) WAGSTAFF, Robert Bruce Greenacres, Washington 99016 (US)

(74)	Representative: Dey, Michael
	Weickmann & Weickmann Patent- und Rechtsanwälte PartmbB Postfach 860 820 81635 München 81635 München (DE)

(54)	SUPPRESSION OF STRESS CORROSION CRACKING IN HIGH MAGNESIUM ALLOYS THROUGH THE ADDITION OF CALCIUM