MICROSTRUCTURE OF ALUMINIUM FOR ARTICLES OF VERY COMPLEX SHAPE AND RELATED METHODS Russian patent published in 2019 - IPC C22F1/04 C22C21/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to aluminium alloys intended for making articles of complex shape, in particular jars and bottles. Aluminium alloy is an alloy with a crystallographic structure containing: less than or equal to 10 vol. % amount of taken together components of Goss texture and inverted texture of Goss; smaller or equal to 20 vol. % amount of components of brass texture; greater than or equal to 10 vol. % amount of taken together components of S-texture and copper texture; microstructures of aluminum in form of random or secondary orientations - balance, wherein density ratio low-density α-fibers to density high-level α-fiber is less than or equal to 0.40; and density ratio low-density α-fibers to density β-fibers are less than or equal to 0.15.

EFFECT: invention is aimed at improvement of processes of primary drawing, drawing, drawing with reduction of wall thickness, imparting necessary shape to the product and faster reduction with reduced percentage of production reject.

15 cl, 5 tbl, 3 dwg