Microstructure Evolution and Grain Growth Model of AZ31 Magnesium Alloy under Condition of Isothermal

Figure 2

Microstructure of AZ31 at different holding time (heating temperature 450°C) (a, 15 min; b, 30 min; c, 45 min; d, 60 min).

(a)

(b)

(c)

(d)