Texture evolution in the presence of precipitates in Fe-3% Si alloy

Texture evolution by grain growth in the presence of MnS or MnS and AIN precipitates in Fe−3% Si alloy was investigated by X-ray diffraction (vector method) and ECP (selected area electron channelling pattern). Texture evolved by grain growth varied with the intensity of the inhibitors in the following manner: when an inhibitor intensity is higher than a critical value, the orientation N having the highest I_CΣi value in the matrix becomes major orientation after grain growth. Here the I_CΣi value denotes an intensity of orientations with Σi type coincidence orientation relationship with a given orientation N (except Σ1 and Σ3 type coincidence orientations). When an inhibitor intensity is weaker than the critical value, the orientation (N) having the highest P_CNΣi value in the matrix becomes major orientation after grain growth. Here the P_CNΣi value denotes an product of a intensity of the given orientation (I_N) and the I_CΣi value. With an weaker inhibitor level, I_N being more dominant and with a stronger inhititor level, I_CΣi being more dominant under the same P_CNΣi value. The inhibitor effect of P_CNΣi1 value increases with increasing in the inhibitor intensity, where P_CNΣ1 is a product of the intensity of the given orientation (I_N)