EFFECT OF TIN ADDITION ON PRIMARY AND SECONDARY RECRYSTALLIZATIONS OFSILICON STEEL

The effect of the tin addition on the primary recrystallization of Fe- 3%Si containing no inhibitor was investigated. The tin addition increa sed the product of KD pole densities {110} and {111}. This effect is c onsidered to be favorable for the secondary recrystallization of the s ilicon steel with such handicaps as high silicon content. Three kinds of specimens of silicon steel containing inhibitors were processed by the single-stage cold rolling method. The specimen with 3%Si, of cours e, secondarily recrystallized, but the specimen with 3.7%Si didn't at all. The tin-added specimen with 3.8%Si secondarily recrystallized per fectly. The phenomena concerning the secondary recrystallization of th e three specimens mentioned above can be explained by considering the effect of the tin addition on the primary recrystallization texture.