Superplastic behavior of a 7055 aluminum alloy

yesIt is shown that a high strength 7055 aluminum alloy with partially recrystallized initial structure exhibits superplastic behavior in the temperature interval 400-490°C within a wide strain rate range from 8.3 ×10⁻⁵ to 3.3 ×10⁻²s⁻¹. Maximum total elongation of about 960% and strain rate sensitivity coefficient, m, of 0.6 were obtained at a temperature of 450°C and a strain rate of 3.3 ×10⁻⁴s⁻¹Belgorod State Universit