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← ScienceWhich 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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