ON THE RECRYSTALLIZATION TEMPERATURE OF HIGH PURITY MAGNESIUM (PART 1)

The study on the recrystallization of high purity magnesium obtained by distillation process was carried on by hardness test, optical microscopy and X-rays analysis.The beginning and finishing temperature of the recrystallization, the influence of working temperature on the recrystallization and the effect of annealing time on it were investigated.The results obtained are as follows:a) The beginning of recrystallization is 100-125°C and the finishing is 225-250°C on specimens compressed at room temperature.b) The beginning on spesimens compressed at 200°C is 150-175°C and the finishing is the same on specimens compressed at room temperature.c) The recrystallization begins at working operation on specimens of compressing at 400°C.d) The recrystallization begins after annealing for about 50min, at 125°C, about 10hrs at 100°C and about 75hrs at 75°C.