Q23
Identify the incorrect statement with respect to grain growth.
A.
As the average grain size increases, the grain boundary energy per unit area deceases
AnswerB.
The driving force for grain growth is the decrease in grain boundary energy per unit volume of the material
C.
Higherthe temperature, the faster is the grain growth
D.
Impurity atoms segregated at grain boundaries can retard grain growth
Answer: Option A
Solution
Answer: Option A
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