FIELD: metallurgy.
SUBSTANCE: article from aluminium alloy includes a pair of external areas and an internal area located between these external areas. First concentration of eutectic-forming alloying elements in inner region is less than second concentration of eutectic-forming alloying elements in each of outer regions, wherein article made from aluminium alloy features delta r plane anisotropy from 0 to 0.10. Delta r value is calculated as absolute value [(r_L + r_LT-2 * r_45)/2], where r_L is value r in longitudinal direction of article from aluminium alloy, r_LT is value r in transverse direction of article from aluminium alloy and r_45 is value of r in direction of 45 degrees of item from aluminium alloy.
EFFECT: technical result is creation of article having low degree of plane anisotropy.
18 cl, 5 tbl, 10 ex
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