Abstract:
In this work, the crystallographic texture of a pure iron was analyzed after isothermal annealing at 550ºC for different times using the EBSD technique. The samples, before annealing, were cold rolled, achieving a reduction in cross-sectional area of up to 80%. It was determined from the experimental point of view which would be the best theory (oriented growth or oriented nucleation) to explain the recrystallization texture by calculating the parameters α and β. By the figures of distribution of crystallographic orientations for φ2=45º, the deformed material presented greater intensity in the crystallographic orientations (1 ̅11) [1 ̅1 ̅0], (3 ̅32) [1 ̅1 ̅0], (2 ̅23) [1 ̅1 ̅0], (1 ̅12) [1 ̅1 ̅0], located on the α fiber. After 30 minutes of annealing, it was observed that the most intense guidelines are located on the γ fiber. Analysis of the Taylor factor distribution showed that grain growth during annealing is controlled by the energy stored during deformation. Through the parameters α and β, it was suggested that the final texture of recrystallization was formed by oriented nucleation, but the effects of oriented growth cannot be disregarded.