(19)
(11) EP 3 294 918 A1

(12)

(43) Date of publication:
21.03.2018 Bulletin 2018/12

(21) Application number: 16831924.2

(22) Date of filing: 30.11.2016
(51) International Patent Classification (IPC): 
C22F 1/053(2006.01)
C22C 21/10(2006.01)
(86) International application number:
PCT/IN2016/000280
(87) International publication number:
WO 2018/025275 (08.02.2018 Gazette 2018/06)
(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: 04.08.2016 IN 201621026704

(71) Applicant: Indian Institute of Technology Bombay
Maharashtra 400 076 (IN)

(72) Inventor:
  • The designation of the inventor has not yet been filed
     ()

(74) Representative: Lins, Martina 
Gramm, Lins & Partner Patent- und Rechtsanwälte PartGmbB Theodor-Heuss-Strasse 1
38122 Braunschweig
38122 Braunschweig (DE)

   


(54) FOUR-STEP THERMAL AGING METHOD FOR IMPROVING ENVIRONMENTALLY ASSISTED CRACKING RESISTANCE OF 7XXX SERIES ALUMINIUM ALLOYS