Question: (a) Using the intercept method, determine the average grain size, in millimeters, of the specimen whose microstructure is shown in Figure (b); use at least

(a) Using the intercept method, determine the average grain size, in millimeters, of the specimen whose microstructure is shown in Figure (b); use at least seven straight-line segments.

(b) Estimate the ASTM grain size number for this material.

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