همبستگی تراکم تعداد گره ی گرا ی مجدد در آلیاژهای آلومینیوم حاوی ذرات

The recrystallized grain structure of Al–(Mn)–Fe–Si alloys after isothermal annealing was studied by electron backscatter diffraction (EBSD) technique. Statistical correlation suggests that the frequency of forming P-oriented ({011}«566») grains at a particle larger than the critical diameter (about 1.1 μm) is about 2% when the effect of fine dispersoids and concurrent precipitation is negligible. The overall grain number density is correlated linearly with the number densities of P and Cube ({001}«100») grains. The grain number densities of typical orientations (P, ND-rotated cube {001}«310» and Cube) and the overall recrystallized grains increase as rolling strain increases, following a similar exponential law.