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← ScienceWhich mechanism limits grain growth in steel alloys during recrystallization heat treatment?
A)Pinning via ferromagnetic precipitate phases✓
B)Curie temperature phase transformations
C)Edge dislocation annihilation rate increase
D)Cementite spheroidization coarsening kinetics
💡 Explanation
Precipitates pin the grain boundaries restricting movement, because Zener pinning restricts grain boundary mobilities, therefore limiting grain growth, rather than other mechanisms that affect dislocations or phase changes, influencing material flow and deformation.
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