Heat treatment can have a significant effect on the toughness and hence fatigue resistance of a metal. In general, ________ grained microstructures tend to perform better than _________ grained.

Heat treatment can have a significant effect on the toughness and hence fatigue resistance of a metal. In general, ________ grained microstructures tend to perform better than _________ grained.
A . Fine, Course
B . Austenetic, martensitic
C . Course, Fine
D . Martensitic, austenetic

Answer: A

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