What is the need for a grain boundary in an annealed material? – McqOptions

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1.	What is the need for a grain boundary in an annealed material?
A.	To control the grain size
B.	To maintain its shape
C.	It can produce a stable equilibrium at the grain edges
D.	During annealing it produce a metastable equilibrium at the grain boundary intersections
Answer» E.

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