1.

The driving force or the rate of grain growth is given by_________ ( -surface energy, D- mean grain diameter, M-mobility)

A. v = k*M*(2 /D)
B. v = k + M*(2 /D)
C. v = k*M*(2D/ )
D. v = k*M*( /D)
Answer» B. v = k + M*(2 /D)


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