Metalurgija (Jan 2021)

Constitutive relationship of 7075 aluminum alloy based on modified Zerilli-Armstrong (M - ZA) model

  • Z. Ma,
  • H. C. Ji,
  • W. C. Pei,
  • S. F. Wang,
  • Y. G. Li

Journal volume & issue
Vol. 60, no. 3-4
pp. 269 – 272

Abstract

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The Gleeble – 3500 thermal simulation testing machine was used to perform isothermal tensile test on 7075 aluminum alloy at a deformation temperature of 300 – 450 °C and a strain rate of 0,01 – 1 s-1, and the true stress-strain curve of the alloy was obtained. Based on the true stress-strain data, the modified Zerilli-Armstrong (M-ZA) model was used to construct the constitutive model of the alloy, and the fitting accuracy of the model was analyzed.

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