Chapter 8 魏茂國 - ndhu.edu.tw

1 Chapter 8 annealing Stored energy of cold work The relationship of free energy to strain energy The release of stored energy Recovery Recovery in single crystals Polygonization Dislocation movements in polygonization Recovery process at high and low temperatures Recrystallization The effect of time and temperature on recrystallization Rerystallization temperature The effect of strain on recrystallization The rate of nucleation and the rate of nucleus growth Formation of nuclei Driving force for recrystallization2 annealing The recrystallized grain size Other variables in recrystallization Purity of the metal Initial grain size Grain growth Geometrical coalescence Three-dimensional changes in grain geometry The grain growth rate Impurity atoms in solid solution Impurities in the form of inclusions The free-surface effects The limiting grain size Preferred orientation Secondary recrystallization Strain-induced boundary migrationChapter 8 3 Fig.

2 Annealing The recrystallized grain size Other variables in recrystallization Purity of the metal Initial grain size Grain growth Geometrical coalescence

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