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← ScienceWhich mechanism causes increased brittleness when interstitial impurities exist in a titanium lattice?
A)Grain boundary sliding
B)Peierls stress increase✓
C)Phonon scattering reduction
D)Burgers vector alignment
💡 Explanation
Increased Peierls stress occurs because interstitial impurities distort the lattice. This distortion impedes dislocation motion, increasing brittleness; therefore slipping requires more force, rather than allowing plastic flow, thus preventing ductile behavior.
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