THE INFLUENCE OF COLD-ROLLING REDUCTION ON R-VALUE AND RECRYSTALLIZATION BEHAVIOR IN FE-36NI ALLOY

Recrystallization behavior and grain growth in Fe-36%Ni invar alloy fo r shadow masks in color cathode ray tubes are studied by using transmi ssion electron microscopy. The r-value increases with increasing (111) surface intensity. In case of light cold-rolling reduction, nuclei or ientations of recrystallized structure after annealing are (011) and t he nuclei are surrounded by cold rolled matrices of (011) orientation. On the other hand, in case of heavy cold rolling reduction, nuclei or ientations of recrystallized structure after annealing are (011) and ( 100). These two nuclei are surrounded by the same cold rolled matrices of (011) orientation with light cold rolling reduction.