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Which mechanism causes decreased ductility during titanium crystal forging above 500°C?

A)Dynamic strain aging
B)Hall-Petch effect
C)Martensitic transformation
D)Grain boundary sliding

💡 Explanation

Dynamic strain aging reduces ductility in titanium because interstitial atoms diffuse and impede dislocation motion; therefore, localized necking occurs rather than uniform deformation, which prevents the metal from easily undergoing further plastic deformation.

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