ALUMINUM ALLOY PRODUCTS AND METHODS FOR PRODUCING SAME Russian patent published in 2018 - IPC C22C21/00 C22C1/02 C22F1/04 

FIELD: technological processes.

SUBSTANCE: invention relates to articles made of an aluminum alloy and a process for making said articles in the form of a strip, which in particular is a blank for the can bodies or ends thereof. Hypereutectic aluminum alloy strip containing at least 0.8 % manganese and/or at least 0.6 % iron by weight, has a near-surface zone located from the surface of the strip of aluminum alloy to a depth of 37 micrometers, containing at least 90 % of the particles of the total amount in the near-surface zone having an equivalent diameter greater than 0.22 and less than 3 micrometers, when their number per unit area is at least 0.01 particle per square micrometer. In the second embodiment, the particles in the near-surface zone have an equivalent diameter greater than 0.22 and less than 1 micrometer, with a volume fraction in the near-surface zone of at least 0.2 percent. Method of making the strip includes continuously casting a hypereutectic aluminum alloy containing at least 0.8 % manganese and/or at least 0.6 % iron by weight, at a speed of 25 to 400 feet per minute while cooling the outer regions of the alloy at a rate of at least 1,000 °C/s to form a strip.

EFFECT: invention is aimed at increasing the yield strength and tensile strength of a strip of hypereutectic aluminum alloy at elevated temperatures due to the creation of a certain structure in the near-surface layers of the strip.

14 cl, 2 ex, 13 tbl, 18 dwg