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← ScienceWhich consequence usually arises when a screw dislocation propagates through metallic crystal lattices?
A)Increased elastic strain hardening✓
B)Enhanced electrical conductivity quickly
C)Decreased thermal expansion rates
D)Spontaneous phase recrystallization begins
💡 Explanation
Increased elastic strain hardening occurs, because dislocation motion interferes with slip planes due to work hardening, hindering plastic deformation. Therefore, the metal becomes harder and more resistant to deformation, rather than exhibiting enhanced conductivity or altered thermal properties.
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