Global Patent Index - EP 0558957 B1

EP 0558957 B1 19970528 - High-strength, wear-resistant aluminum alloy

Title (en)

High-strength, wear-resistant aluminum alloy

Title (de)

Hochfestige und verschleissfestige Aluminiumlegierung

Title (fr)

Alliage d'aluminium à haute résistance mécanique et résistance à l'usure

Publication

EP 0558957 B1 19970528 (EN)

Application

EP 93101944 A 19930208

Priority

JP 2682192 A 19920213

Abstract (en)

[origin: EP0558957A2] A high-strength, wear-resistant aluminum alloy consisting of an Al-Si-based alloy consisting of Al as a main metal element and, added thereto, additive elements and Si element, characterized in that the mean crystal grain size of a matrix of Al is 40 to 1000 nm, the mean particle size of particles of a stable phase or a metastable phase of various intermetallic compounds formed from Al and the additive elements including Si and/or various intermetallic compounds formed from the additive elements themselves is 10 to 800 nm, the size of elemental Si particles is 10 mu m or less, the intermetallic compound particles are distributed in a volume fraction of 18 to 35 % in the Al matrix, and the elemental Si particles are distributed in a volume fraction of 15 to 40% in the Al matrix. The aluminum alloy has an improved strength at room temperature and a large toughness and can maintain the properties inherent in a material produced by the rapid solidification process even when it undergoes a thermal influence during working.

IPC 1-7

C22C 21/00; C22C 21/02; C22F 1/04; C22C 45/00; C22C 45/08

IPC 8 full level

C22C 21/02 (2006.01); C22C 45/08 (2006.01)

CPC (source: EP)

C22C 21/02 (2013.01); C22C 45/08 (2013.01)

Citation (examination)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0558957 A2 19930908; EP 0558957 A3 19931006; EP 0558957 B1 19970528; DE 69310952 D1 19970703; DE 69310952 T2 19980102; JP 2965774 B2 19991018; JP H05222478 A 19930831

DOCDB simple family (application)

EP 93101944 A 19930208; DE 69310952 T 19930208; JP 2682192 A 19920213