A method of forming a high strength aluminum alloy is disclosed. The method comprises solutionizing a heated aluminum material to a temperature ranging from about 5°C above standard solutionizing temperature for the aluminum material to about 5°C below the initial melting temperature to form a heated aluminum material, followed by quenching. do. The aluminum material includes at least one of magnesium and silicon as minor components in a concentration of 0.2 wt% or more. The cooled aluminum material is subjected to ECAE processing using either isothermal conditions and non-isothermal conditions. Isothermal conditions include having the billet and die at the same temperature between about 80°C and about 200°C. Non-isothermal conditions include having the billet at a temperature of about 80°C to about 200°C and having a die at a temperature of 100°C or less. The aluminum material is aged at a temperature of about 100°C to about 175°C.
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