Cold-rolled and primary recrystallization textures in cold-rolled single crystals of silicon iron

Abstract

Quantitative pole figures are given for the cold-rolled textures and the primary recrystallization textures obtained from single crystals of silicon iron. The orientation changes produced by cold rolling, by primary recrystallization, and by secondary recrystallization are discussed. Each primary recrystallization texture is shown to consist of several preferred orientations with one component predominant. Minor components are shown to have the orientations found for components of the secondary recrystallization texture when secondary recrystallization occurs on further annealing. The conclusion is reached that large primaries from a minor component of the primary recrystallization structure grow and become secondaries of the same preferred orientation, provided they are large enough to grow in competition with other primaries and do not come from a component which by itself or together with a twin component represents too large a fraction of the texture. The results obtained for both primary and secondary recrystallization agree better with the oriented-nucleation growth-selectivity theory than with other current theories.