Establishment of Prediction Model of Microstructure and Properties of 3003 Aluminum Alloy during Hot Deformation

  • Guiqing CHEN Fujian Chuanzheng Communications College
  • Gaosheng FU
  • Tianyun WEI
  • Chaozeng CHENG
  • Huosheng WANG
  • Lili SONG
Keywords: 3003 aluminum alloy, hot deformation, average grain size, steady-state flow stress, microhardness

Abstract

The 3003 aluminum alloy was deformed by isothermal compression in the range of deformation temperature
300500 ℃ at strain rate 0.0l10.0 s-1 with Gleeble-1500 thermal simulator. A constitutive equation is established from the flow stress of the hot deformation. It is found that the average grain size of the 3003 aluminum alloy increases with the decrease of Zener-Hollomon (Z) value, and there is a linear correlation between them. The prediction model of the steady-state flow stress and the average grain size is established. The steady-state flow stress increases with the decrease of the average grain size. The microhardness of the 3003 aluminum alloy has a positive linear relationship with lnZ, and the relationship between the microhardness and the grain size meets the Hall-Petch equation, which can provide a reference for the microstructure control and rolling equipment selection of the 3003 aluminum alloy under hot deformation conditions.

Author Biography

Guiqing CHEN, Fujian Chuanzheng Communications College
Department of Mechanical Engineering
Published
2019-06-27
Section
METALS, ALLOYS, COATINGS