Recrystallization Theoretical & Practical Aspects - Materials Science ...
Recrystallization Theoretical & Practical Aspects - Materials Science ...
Recrystallization Theoretical & Practical Aspects - Materials Science ...
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Intro<br />
<strong>Recrystallization</strong><br />
Lab 1<br />
Grain<br />
Boundaries<br />
<strong>Recrystallization</strong>: measurement<br />
• How can we measure recrystallization?<br />
• The traditional method is to perform optical<br />
metallography on sectioned samples.<br />
Recrystallized grains appear as approximately<br />
equiaxed grains with uniform color. Unrecrystallized<br />
grains appear as deformed grains with irregular<br />
contrast.<br />
• Measurement is primarily the area fraction of<br />
recrystallized versus unrecrystallized material.<br />
Stereology tells us that this area fraction is<br />
equivalent to the volume fraction of recrystallized<br />
material.<br />
• An easier measurement is hardness which<br />
decreases during the recrystallization process.<br />
7
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