Funct. Mater. 2020; 27 (1): 170-178.

doi:https://doi.org/10.15407/fm27.01.170

Analysis of anisotropy of the Young's modulus of ideal orientation of α-iron textures

N.A.Volchok, D.A.Dyachok, Z.A.Briukhanova, E.V.Dyshlov

South Ukrainian National Pedagogical University named K.Ushinsky, 26 Staroportofrankovska Str., 65020 Odesa, Ukraine

Abstract: 

Using the Fourier analysis method, we studied the anisotropy of the Young's modulus (E) in the crystallographic planes of the main ideal orientations (IO) of the textures in α-iron sheets. The dependences of E on the direction of measurement, the anisotropy coefficients and the average values of E for the various IOs of annealing and rolling textures in α-iron are obtained. The texture of low-carbon DC04 (0.06 % C, up to 0.35 % Mn, up to 0.40 % Si, ~ 0.025 % S and P) steel sheets after annealing and cold rolling was investigated. The IO set of annealed sheets provides anisotropy of E with a maximum in the transverse direction (TD) and a minimum in the rolling direction (RD) + 45°. The process of rolling forms IOs which increase the Young's modulus in the TD and RD + 45°. The experimental values of E are in satisfactory agreement with the results of the calculations from the anisotropy of the IO obtained from an X-ray texture experiment.

Keywords: 
Young's modulus, anisotropy, texture, ideal orientation, alpha-iron, pole figure.
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