Influence of Plastic Strain Accumulation in Continuous Ingots during ECAP on Structure and Recrystallization Temperature of AlCu4MgSi Alloy

Paweł M Nuckowski; Przemysław Snopiński; Tomasz Wróbel

doi:10.3390/ma13030576

Influence of Plastic Strain Accumulation in Continuous Ingots during ECAP on Structure and Recrystallization Temperature of AlCu4MgSi Alloy

Materials (Basel). 2020 Jan 25;13(3):576. doi: 10.3390/ma13030576.

Authors

Paweł M Nuckowski¹, Przemysław Snopiński¹, Tomasz Wróbel²

Affiliations

¹ Department of Engineering Materials and Biomaterials, Silesian University of Technology, 18A Konarskiego Street, Gliwice 44-100, Poland.
² Department of Foundry Engineering, Silesian University of Technology, 7 Towarowa Street, Gliwice 44-100, Poland.

Abstract

This work attempts to process AlCu4MgSi (AW 2017A) alloy continuous ingots by means of the equal channel angular pressing (ECAP) method. The equal channel angular pressing (ECAP) technique has been widely investigated in recent years as the most promising severe plastic deformation (SPD) method. The presented research was focused on the precise determination of the phase composition of the precipitates formed in the AlCu4MgSi alloy and its influence on intensive plastic deformation. In the second stage, the research was focused on explaining the recrystallization process. With the use of the high-temperature X-ray diffraction (HTXRD) technique, the changes in the dislocation substructure at various recrystallization annealing temperatures were analyzed.

Keywords: aluminum alloy; continuous ingot; equal channel angular pressing ECAP; high-temperature X-ray diffraction (HT-XRD); microstructure; severe plastic deformation (SPD).