ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRISYUMT......JDIM360 (Ver 1.5 21 Nov 2005) - 1620000/01847626EUROPEAN PATENT APPLICATIONA320071031EP07106312.720070417enenen200611294120060417JP2007103120074420071024200743

C22C 23/02 20060101AFI20070831BHEP

deMagnesiumlegierungenenMagnesium alloysfrAlliages de magnésiumnoneMotegi, Tetsuichi03277841M 07008 E.6-41-25-105, FutawahigashiFunabashi-shi, ChibaJPAdco Koki Co., Ltd.07510610M 07008 E.4-10, Yotsuya, Shinjuku-kuTokyo 160-0004JPSanyu Seiki Co. Ltd.05232380M 07008 E.305-1 Ogushi, YoshiiTano-gun, Gunma 370-2111JPSaito, Kazuyoshi07894030M 07008 E.189 Kamishibusa-aza-harada Haramachi-kuFukushima Minamisoma-shiJPMotegi, Tetsuichi41-25-105, Futawa-higashi 6-chomeFunabashi-shi ChibaJPTamura, Yosuke1417-5, Tokecho, Midori-kuChiba-shi ChibaJPSanpei, Yukio Clio Nishifunabashi No. 304,723-1, Kaijincho-minami 1-chome,Funabashi-shi ChibaJPSchaumburg, Thoenes, Thurn, Landskron00100352Patentanwälte Postfach 86 07 4881634 MünchenDEATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEISITLILTLULVMCMTNLPLPTROSESISKTRALBAHRMKYU20071031200744

A casting heat-resistance Mg alloy improved in heat resistance without relying upon expensive RE contains Cu. More specifically, it contains Al (8.0 weight %), Cu (1.0-5.0 weight %), Zn (2.0 weight %), Be (0.01 weight %) and Mg (the rest). The alloy can be prevented from deteriorating in corrosion resistance by adjusting the added amount of Cu to 1.0-1.5 weight %. The corrosion resistance of the alloy can be improved more by adding 0.5 to 1.0 weight % Mn as well.