3%珪素鉄(001)[110]単結晶の再結晶について

抄録

Many works have been done on the behavior of 3%Si-Fe (001)[110] crystal on annealing after cold rolling, but a clear-cut conclusion has not yet been reached. To clarify the recrystallization behavior of this crystal the experiment was done on specimens of various sizes and by rolling under various conditions and annealing at such high temperature as 1200°C.
The results are summarized as follows:
(1) 3%Si-Fe (001)[110] crystal, with a sufficiently large size, which was carefully rolled 70% and its edges were trimmed after cold rolling, did not recrystallize on annealing 20 hrs at 1200°C.
(2) When the crystal was recrystallized on annealing, the recrystallization nucleus seems to have been formed by the slip other than probable active slips. These slips were caused by either the size effect of specimens or by rolling conditions.
(3) When (001)[110] crystal did not recrystallize on annealing, only the recovered state having large subgrains and dislocation net works were observed. The initial (001)[110] orientation was substantially maintained through cold rolling and high temperature annealing.