EP 2285995 A1 20110223 - IMPROVED ALUMINIUM BASED CASTING ALLOY
Title (en)
IMPROVED ALUMINIUM BASED CASTING ALLOY
Title (de)
VERBESSERTE GUSSLEGIERUNG AUF ALUMINIUMBASIS
Title (fr)
ALLIAGE POUR COULÉE À BASE D'ALUMINIUM AMÉLIORÉ
Publication
Application
Priority
- AU 2009000532 W 20090430
- AU 2008902123 A 20080430
Abstract (en)
[origin: WO2009132388A1] An aluminium based alloy has a weight percentage composition of from 5 to 15% silicon, 0 to 0.25% magnesium, 0 to 0.25% titanium, 0.2 to 0.65% manganese, 0.1 to 0.6% iron, 1 to 4% copper, 0 to 3% zinc, less than 0.01% in total of silicon modifiers (with less than 0.007% strontium), less than 0.05% tin, less than 0.2% in total of other transition or rare earth metals (with less than 0.05% chromium), less than 0.5% in total other elements, and a balance of aluminium. The limits for iron and manganese are constrained such that the amount of iron present in the alloy is 0.4 to 1.6 times the manganese content and the alloy has a sludge factor (SF), calculated as SF = (1 x wt% Fe)+(2 x wt% Mn), of from 0.8 to 1.6. A casting made from the alloy has enhanced fracture resistance relative to casting of the same product made of a conventional HPDC alloy when compared in the as cast or same heat treated state.
IPC 8 full level
C22C 21/02 (2006.01); C22C 21/04 (2006.01)
CPC (source: EP US)
C22C 21/02 (2013.01 - EP US)
Citation (search report)
See references of WO 2009132388A1
Designated contracting state (EPC)
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 SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009132388 A1 20091105; AU 2009242962 A1 20091105; CN 102016092 A 20110413; EP 2285995 A1 20110223; US 2011100515 A1 20110505
DOCDB simple family (application)
AU 2009000532 W 20090430; AU 2009242962 A 20090430; CN 200980114940 A 20090430; EP 09737538 A 20090430; US 73667709 A 20090430