Estimate the fraction of recrystallization from the photomicrograph in Figure 7.21c.Figure...

Estimate the fraction of recrystallization from the photomicrograph in Figure 7.21c.

Figure 7.21 Photomicrographs showing several stages of the recrystallization and grain growth of brass. (c) Partial replacement of cold-worked grains by recrystallized ones (4 s at 580°C). (Photomicrographs courtesy of J. E. Burke, General Electric Company.)