In order to control the grain size in thermomechanical processing, growth behavior of hot extruded Mg–xAl–1Zn (x = 3, 6, 9) alloys and their relationship with second phase particles solutes were investigated. The rate AZ61 is greater than that AZ31 AZ91 at 300 °C, 350 400 450 °C under isothermal annealing. average exponents n 2.26, 2.33, 2.53 300–400 respectively. deviation from theoretical val...
