Global Patent Index - EP 0559694 B1

EP 0559694 B1 19980916 - METHOD OF PREPARING IMPROVED HYPER-EUTECTIC ALLOYS AND COMPOSITES BASED THEREON

Title (en)

METHOD OF PREPARING IMPROVED HYPER-EUTECTIC ALLOYS AND COMPOSITES BASED THEREON

Title (de)

VERFAHREN ZUR HERSTELLUNG VON VERBESSERTE HYPEREUTEKTISCHE LEGIERUNGEN UND AUF DIESEN BASIERTE VERBUNDWERKSTOFFE

Title (fr)

PROCEDE DE PREPARATION D'ALLIAGES AMELIORES HYPER-EUTECTIQUES ET COMPOSITES BASES SUR CES ALLIAGES

Publication

EP 0559694 B1 19980916 (EN)

Application

EP 91920402 A 19911127

Priority

  • CA 9100418 W 19911127
  • CA 2030928 A 19901127
  • US 77012491 A 19911002

Abstract (en)

[origin: WO9209711A1] A method is described for preparing a refined or reinforced eutectic or hyper-eutectic metal alloy, comprising: melting the eutectic or hyper-eutectic metal alloy, adding particles of non-metallic refractory material to the molten metal matrix, mixing together the molten metal alloy and the particles of refractory material, and casting the resulting mixture under conditions causing precipitation of at least one intermetallic phase from the molten metal matrix during solidification thereof such that the intermetallics formed during solidification wet and engulf said refractory particles. The added particles may be very small and serve only to refine the precipitating intermetallics in the alloy or they may be larger and serve as reinforcing particles in a composite with the alloy. The products obtained are also novel.

IPC 1-7

C22C 1/10; C22C 38/00; C22C 32/00

IPC 8 full level

C22C 1/10 (2006.01); C22C 21/00 (2006.01); C22C 21/02 (2006.01); C22C 32/00 (2006.01)

CPC (source: EP)

C22C 1/1036 (2013.01); C22C 32/00 (2013.01)

Citation (examination)

  • Int. Mtrls Rev., 1986, 31(3), pp.115-139
  • Z. Metallkde, 1989, 80(M-6), pp.444-446
  • Fabrication of particulates reinforced metal composites, Materials Park, OH, ASM International, Ed.J.Masounave et al., 1990, pp.47-52
  • Aluminum Alloys: Structure and Properties, L.F. Mondolfo, Butterworths, 1976, pp.592-594

Designated contracting state (EPC)

CH DE ES FR GB IT LI NL

DOCDB simple family (publication)

WO 9209711 A1 19920611; DE 69130227 D1 19981022; DE 69130227 T2 19990121; EP 0559694 A1 19930915; EP 0559694 B1 19980916; JP 3492681 B2 20040203; JP H06502689 A 19940324

DOCDB simple family (application)

CA 9100418 W 19911127; DE 69130227 T 19911127; EP 91920402 A 19911127; JP 50021892 A 19911127