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← ScienceWhich outcome occurs when a rapidly heated metallic lattice experiences grain boundary sliding?
A)Increased probability of fatigue crack initiation✓
B)Enhanced rate of eutectic solidification
C)Increased energy band gap magnitude
D)Improved single-crystal silicon doping uniformity
💡 Explanation
Fatigue crack initiation risk increases because grain boundary sliding concentrates dislocations due to low activation energy at boundaries; therefore, cracks emerge instead of uniform deformation or band gap changes, rather than enhancing eutectic behavior.
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