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9) An engineer must choose whether to use an alloy with a grain diameter of 100 microns or 1.0 mm. The decision is based

9) An engineer must choose whether to use an alloy with a grain diameter of 100 microns or 1.0 mm. The decision is based on strength and creep resistance. Which grain size should the engineer choose for T A) -=0.2 TM T B) Justify your answers. -0.7 Typ

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