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MSE 3011 Physical Metallurgy Annealing in Wrought Products
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MSE 3011 Physical Metallurgy Annealing in Wrought Products

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Questions and Answers

What is the driving force for the recovery process during annealing?

Free energy stored in point defects and dislocations

What is the driving force for recrystallization process during annealing?

Energy stored in dislocations

Describe the process of recrystallization.

Growth of a new set of strain-free and equiaxed grains in a deformed polycrystalline material.

What happens to the grains during recrystallization?

<p>Grains become strain-free and equiaxed.</p> Signup and view all the answers

What is the impact of recrystallization on the material's strength?

<p>Higher strength due to reduced grain size.</p> Signup and view all the answers

When do new grains form during recrystallization?

<p>When recovery is complete and the temperature is sufficiently high.</p> Signup and view all the answers

What characteristics do the new grains have after recrystallization?

<p>Similar to the metal prior to cold working.</p> Signup and view all the answers

What is the driving force for grain growth during annealing?

<p>Free energy stored in grain boundaries.</p> Signup and view all the answers

Explain why grain growth occurs during annealing.

<p>To reduce the total energy of the material.</p> Signup and view all the answers

What is the significance of grain growth in the annealing process?

<p>To reach a more stable state with lower energy.</p> Signup and view all the answers

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