Question: The average grain diameter for a brass material was measured as a function of time at 650?C, which is tabulated below at two different times:

The average grain diameter for a brass material was measured as a function of time at 650?C, which is tabulated below at two different times:

Grain Diameter (mm) 3.9 x 10-2 6.6 x 10-2 Time (min) 90

(a) What was the original grain diameter?

(b) What grain diameter would you predict after 150 min at 650?C?

Grain Diameter (mm) 3.9 x 10-2 6.6 x 10-2 Time (min) 90

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