Invention Application
- Patent Title: Aluminum alloy, cast article of aluminum alloy, and method for producing cast article of aluminum alloy
- Patent Title (中): 铝合金，铝合金铸件和铝合金铸造件的制造方法
-
Application No.: US10487940Application Date: 2002-08-30
-
Publication No.: US20050000604A1Publication Date: 2005-01-06
- Inventor: Hiroshi Kawahara , Yoshihiro Shimizu , Yoshio Sugiyama , Toshio Horie , Hiroaki Iwahori , Yoshihiko Sugimoto , Minoru Yamashita
- Applicant: Hiroshi Kawahara , Yoshihiro Shimizu , Yoshio Sugiyama , Toshio Horie , Hiroaki Iwahori , Yoshihiko Sugimoto , Minoru Yamashita
- Priority: JP2001-267932 20010904
- International Application: PCT/JP02/08854 WO 20020830
- Main IPC: B22D21/00
- IPC: B22D21/00 ; C22C21/06
Abstract:
An aluminum alloy according to the present invention includes from 4.0 to 6.0% Mg, from 0.3 to 0.6% Mn, from 0.5 to 0.9% Fe, and the balance of Al and inevitable impurities when the entirety is taken as 100% by mass. By appropriately selecting the composition range of Mg, Mn and Fe, it has been possible to micro-finely crystallize Al (Mn, Fe) compounds while inhibiting the growth of primary-crystal Al. As a result, the resulting aluminum alloy is good in terms of the castability, and shows high strength as well as high ductility.
Information query
