Flow stress and work-hardening behaviour of Al–Mg binary alloys

Analysis of the flow stress and work hardening behaviour has been carried out in series of Al–Mg solid solutions between 4K and 298K. The results reveal that the yield stress decreases linearly with the temperature and increases approximately linearly with the Mg content in the solution. The thermomechanical and Portevin–Le Chatelier instabilities dominate the flow stress behaviour of alloys at 4K and 298K. Dynamics of these instabilities …