Hot deformation behavior and rate-controlling mechanism in dilute Al–Fe–Si alloys with minor additions of Mn and Cu

The hot deformation behavior of dilute Al–Fe–Si alloys containing various amounts of Mn (0.1–0.2 wt%) and Cu (0.05–0.31 wt%) was investigated by hot compression tests conducted over a range of deformation temperatures (400–550 °C) and strain rates (0.01–10 s−1). Both Mn and Cu in a solid solution have a significant influence on the hot workability of dilute Al–Fe–Si alloys. On a wt% basis, Mn exhibits a stronger strengthening effect compared...