Question: (a) Calculate the diffusion coefficient for magnesium in aluminum at 450C. (b) What time will be required at 550C to produce the same diffusion result

(a) Calculate the diffusion coefficient for magnesium in aluminum at 450°C.

(b) What time will be required at 550°C to produce the same diffusion result (in terms of concentration at a specific point) as for 15 h at 450°C?

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