(19)
(11) EP 0 584 596 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.08.1994 Bulletin 1994/32

(43) Date of publication A2:
02.03.1994 Bulletin 1994/09

(21) Application number: 93112487.9

(22) Date of filing: 04.08.1993
(51) International Patent Classification (IPC)5: C22C 21/00, C22C 45/08
(84) Designated Contracting States:
DE FR

(30) Priority: 05.08.1992 JP 209115/92
05.08.1992 JP 209116/92
02.03.1993 JP 41528/93

(71) Applicants:
  • YAMAHA CORPORATION
    Hamamatsu-shi Shizuoka-ken (JP)
  • Masumoto, Tsuyoshi
    Sendai-shi, Miyagi-ken (JP)
  • Inoue, Akihisa
    Sendai-shi, Miyagi-ken (JP)

(72) Inventors:
  • Masumoto, Tsuyoshi
    Sendai-shi, Miyagi-ken (JP)
  • Inoue, Akihisa
    Aoba-ku, Sendai-shi, Miyagi-ken (JP)
  • Horio, Yuma,c/o YAMAHA CORPORATION
    Shizuoka-ken (JP)

(74) Representative: Wagner, Karl H., Dipl.-Ing. et al
WAGNER & GEYER Patentanwälte Gewürzmühlstrasse 5
80538 München
80538 München (DE)


(56) References cited: : 
   
       


    (54) High strength and anti-corrosive aluminum-based alloy


    (57) The present invention provides a high strength and anti-corrosive aluminum-based alloy essentially consisting of an amorphous structure or a multiphase amorphous/fine crystalline structure, which is represented by the general formula AlxMyRz. In this formula, M represents at least one metal element selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Cu, Zr, Nb, Mo and Ni, and R represents at least one element or mixture selected from the group consisting of Y, Ce, La, Nd and Mm (misch metal). Additionally, in the formula, x, y and z represent the composition ratio, and are atomic percentages satisfying the relationships of

    , 64.5 ≦ x ≦ 95, 0.5 ≦ y ≦ 35, and 0 < z < 0.5.





    Search report