(19)
(11) EP 3 635 148 A1

(12)

(43) Date of publication:
15.04.2020 Bulletin 2020/16

(21) Application number: 18769915.2

(22) Date of filing: 20.08.2018
(51) International Patent Classification (IPC): 
C22F 1/053(2006.01)
C22C 21/08(2006.01)
C22F 1/047(2006.01)
 C22C 21/06(2006.01)
C22C 21/10(2006.01)
C22F 1/05(2006.01)
(86) International application number:
PCT/US2018/047058
(87) International publication number:
WO 2019/040356 (28.02.2019 Gazette 2019/09)
(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: 21.08.2017 US 201762548013 P

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

(72) Inventors:
  • WU, Cedric
    Marietta, Georgia 30062 (US)
  • KAMAT, Rajeev G.
    Marietta, Georgia 30062 (US)
  • WANG, Yi
    Los Angeles, California 90045 (US)
  • WAGSTAFF, Samuel Robert
    Marietta, Georgia 30066 (US)
  • MOHANTY, Rashmi Ranjan
    Roswell, Georgia 30075 (US)
  • KULKARNI, Rahul Vilas
    Marietta, Georgia 30066 (US)
  • BENDZINSKI, Duane E.
    Woodstock, Georgia 30189 (US)
  • YUAN, Yudie
    Roswell, Georgia 30075 (US)

(74) Representative: Weickmann & Weickmann PartmbB 
Postfach 860 820
81635 München
81635 München (DE)

   


(54) ALUMINUM ALLOY PRODUCTS HAVING SELECTIVELY RECRYSTALLIZED MICROSTRUCTURE AND METHODS OF MAKING