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← ScienceWhich outcome occurs when rapid precipitation forms nanoscale lattice defects?
A)Increased Hall–Petch strengthening✓
B)Reduced material stress corrosion
C)Improved overall fatigue strength
D)Enhanced ductile-brittle transition temperature
💡 Explanation
Increased yield strength occurs due to disrupted dislocation motion imparted by incoherent precipitates via Orowan strengthening, because lattice defects pin dislocations. Therefore, Hall-Petch strengthening results, rather than improved corrosion or fatigue behavior which require different failure mechanisms.
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