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1. (WO2007009616) A WROUGHT ALUMINUM AA7000-SERIES ALLOY PRODUCT AND METHOD OF PRODUCING SAID PRODUCT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/009616 International Application No.: PCT/EP2006/006654
Publication Date: 25.01.2007 International Filing Date: 07.07.2006
Chapter 2 Demand Filed: 27.02.2007
IPC:
C22C 21/10 (2006.01) ,C22F 1/053 (2006.01)
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
21
Alloys based on aluminium
10
with zinc as the next major constituent
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04
of aluminium or alloys based thereon
053
of alloys with zinc as the next major constituent
Applicants:
ALERIS ALUMINUM KOBLENZ GMBH [DE/DE]; Carl-Spaeter-Strasse 10 56070 Koblenz, DE (AllExceptUS)
BUERGER, Achim [DE/DE]; DE (UsOnly)
SPANGEL, Sabine, Maria [DE/DE]; DE (UsOnly)
VAN DE LANGKRUIS, Jörgen [NL/NL]; NL (UsOnly)
MORRA, Paola, Valentina, Absala [IT/NL]; NL (UsOnly)
BENEDICTUS, Rinze [NL/NL]; NL (UsOnly)
BOEZEWINKEL, Johan [NL/NL]; NL (UsOnly)
SENGO, Sabri [NL/NL]; NL (UsOnly)
HEINZ, Alfred, Ludwig [DE/DE]; DE (UsOnly)
MORITZ, Claus, Jürgen [DE/DE]; DE (UsOnly)
NORMAN, Andrew [GB/NL]; NL (UsOnly)
KHOSLA, Sunil [GB/NL]; NL (UsOnly)
Inventors:
BUERGER, Achim; DE
SPANGEL, Sabine, Maria; DE
VAN DE LANGKRUIS, Jörgen; NL
MORRA, Paola, Valentina, Absala; NL
BENEDICTUS, Rinze; NL
BOEZEWINKEL, Johan; NL
SENGO, Sabri; NL
HEINZ, Alfred, Ludwig; DE
MORITZ, Claus, Jürgen; DE
NORMAN, Andrew; NL
KHOSLA, Sunil; NL
Agent:
MÜLLER, Peter, F.; Müller Schupfner Bavariaring 11 80336 München, DE
Priority Data:
05076673.221.07.2005EP
Title (EN) A WROUGHT ALUMINUM AA7000-SERIES ALLOY PRODUCT AND METHOD OF PRODUCING SAID PRODUCT
(FR) PRODUIT D'ALLIAGE D'ALUMINIUM CORROYE DE SERIE AA7000 ET PROCEDE DE PRODUCTION DE CELUI-CI
Abstract:
(EN) This invention relates to a wrought aluminum AA7000-series alloy product, comprising (in wt %): Zn 7.5 to 14.0, Mg 1.0 to 5.0, Cu < 0.28, Fe < 0.30, Si < 0.25 and one or more of selected from the group consisting of: Zr < 0.30, Ti < 0.30, Hf < 0.30, Mn < 0.80, Cr < 0.40, V < 0.40, and Sc< 0.70, remainder: incidental elements and impurities, each < 0.05, total < 0.15, and balance aluminum, said product having reduced hot crack sensitivity, also having improved strength and toughness properties, and when in artificially aged condition having a hardness of more than 180 HB.
(FR) L'invention concerne un produit d'alliage d'aluminium corroyé de série AA7000 comprenant (en % en poids): - entre 7,5 et 14,0 de Zn entre 1,0 et 5,0 de Mg moins de 0,28 de Cu moins de 0,30 de Fe moins de 0,25 de Si et un ou plusieurs éléments sélectionnés dans le groupe comprenant: moins de 0,30 de Zr, moins de 0,30 de Ti, moins de 0,30 de Hf, moins de 0,80 de Mn, moins de 0,40 de Cr, moins de 0,40 de V et moins de 0,70 de Sc et le reste: des éléments et des impuretés imprévus, individuellement moins de 0,05, au total moins de 0,15, et le reste de l'aluminium, ledit produit présentant une sensibilité aux fissures à chaud réduite, présentant également des propriétés de résistance et de ténacité améliorées et, dans des états de vieillissement artificiel, une dureté supérieure à 180 HB.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1904659BRPI0612903-0JP2009501847BRPI0612903US20070204937US20070151636
RU0002413025CN101243196CA2615852FR2888854IN283/CHENP/2008