Abstract
Strain-tempering treatment was applied to variously cold-rolled Fe-Ni (50%) sheets under various conditions and the effect of strain-tempering on the recrystallization texture and grain size was studied. The results obtained were as follows: (1) Grain growth has been easily induced by strain-tempering treatment, and the maximum grain size was influenced by temperature and stress in this treatment. (2) The recrystallization texture by this treatment has become sharper compared with that by ordinary annealing treatment. (3) It was found that the secondary recrystallization was hastened by this treatment and it began at about 1050° in hydrogen gas. (4) The effect of atomosphere on grain growth was studied by using hydrogen, nitrogen and air. We obtained the result that H2 gas was most effective for recrystallization and grain growth.
