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Which outcome is most sensitive to the process of Ostwald ripening in metallic alloys, assuming a diffusion-limited regime?

A)Decline in yield strength
B)Increase in ductile fracture
C)Promoted intermetallic formation
D)Enhanced grain boundary pinning

💡 Explanation

A decline in yield strength occurs because Ostwald ripening causes larger precipitates to grow at the expense of smaller ones, decreasing overall precipitate density. Therefore yield strength declines because resistance to dislocation motion is reduced, rather than boundary modification or intermetallic formation.

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