| abstract |
An aluminum alloy material which is one aspect of the present disclosure has a composition of Zn: 6.5% (mass%, hereinafter the same) more than 8.5%, Mg: 0.5 to 1.5%, Cu: 0.10% By mass or less, Mn: less than 0.05%, Cr: less than 0.05%, Zr: not less than 0.05% and not more than 0.10%, Ti: not less than 0.001% and not more than 0.05%, the balance being Al and inevitable impurities, And a mass ratio (Zn / Mg) of Mg of not less than 5 and not more than 16, and the metal structure includes a recrystallized structure of a cubic grain. |