(19)

(11)

EP 2 839 048 A1

(12)

(43) Date of publication: 25.02.2015 Bulletin 2015/09 (21) Application number: 12743455.3 (22) Date of filing: 03.08.2012

(51) International Patent Classification (IPC):  C22C 38/18(2006.01) C21D 9/42(2006.01) C21D 9/40(2006.01) (86) International application number: PCT/EP2012/065224 (87) International publication number: WO 2013/156091 (24.10.2013 Gazette 2013/43)

(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 (30) Priority: 20.04.2012 EP 12165035 (71) Applicants: Aktiebolaget SKF 41 550 Göteborg (SE) Cambridge Enterprise Limited, The Old Schools Cambridge, Cambridgeshire CB2 1TN (GB)	(72) Inventors: VEGTER, Erik NL-4105 SB Culemborg (NL) BHADESHIA, Harshad Kumar Dharamshi Hansraj Comberton Cambridgeshire CB23 (GB) RIVERA-DIAZ-DEL-CASTILLO, Pedro Eduardo Jose Cambridge Cambridgeshire CB30 JB (GB) SZOST, Blanka NL-3439 MT Nieuwegein (NL) (74) Representative: Tweedlie, Diane Harkness et al SKF B.V. Kelvinbaan 16 3489 MT Nieuwegein 3489 MT Nieuwegein (NL)