ALUMINUM-BASE MATERIAL AND METHOD OF MANUFACTURE OF PRODUCTS FROM ALUMINUM-BASE MATERIAL Russian patent published in 2000 - IPC

FIELD: aluminum-base materials and methods of manufacture of products of these materials. SUBSTANCE: aluminum- base material has matrix formed by solid solution of zinc, magnesium and copper in aluminum with uniformly distributed dispersed particles of phases formed by aluminum, zinc, magnesium and copper. Uniformly distributed in matrix are particles of nickel aluminides of crystalline origin, and uniformly distributed in matrix are particles, of, at least, one of aluminides selected from group including chrome and zirconium aluminides with their total content from 0.1 to 0.5 vol.% of material. Matrix has HV microhardness of at least, 170. Particles of nickel aluminides have maximum size not in excess of 3 mcm with maximum- to-minimum sizes ratio of not in excess of 2. Sizes of particles of chrome and zirconium aluminides do not exceed 0.05 mcm. Produced material features ultimate strength of, least, 530 MPa and elongation of, at least, 2%, with technological properties allowing manufacture of products by shaped casting into metal molds. Method of manufacture of products from aluminum-base material by products casting and subsequent heat treatment provides for obtaining thin-walled products featuring high strength properties. EFFECT: higher efficiency. 4 cl, 2 dwg