抄録
Fe-36Ni(Invar) steel sheet is used for shadow masks in color cathode ray tubes. For using shadow masks, it is necessary to obtain a low yield strength, high r- value and excellint etching property after annealing. So, nuclei orientations of recrystallization, and grain growth of invar alloy were studied by transmission electron microscopy (TEM). The results are as follows:
(1)In case of cold rolling with light cold rolling reduction and annealing, nuclei orientations of recrystallization are mainly (011) and (011) nuclei orientations have matrices of (011) orientation.
(2)In case of cold rolling with heavy cold rolling reduction and annealing, nuclei orientations of recrystallization are mainly (011) and (011). Both orientations have matrices of (011) orientation.
(3)The grains of (011) orientation in sample with heavy cold rolling reduction are increased with progressing annealing.
