Three Dimensional Representation of Texture and Anisotropies of Mechanical Properties in Cold Rolled Mild Steel Sheet

Abstract

SynopsisThe present experiment has been made with two purposes. One is to make a precise analysis of textures of cold rolled and recrystallized mild steel sheets by means of a three-dimensional orientation distribution function (ODF). The materials used, are aluminium killed steel sheets and rimmed steel sheets.The other is to find a quantitative relationship between the anisotropy of mechanical properties of those sheets and the textures represented by the ODF. Young's modulus, Lankford value and propagation velocities of elastic waves are chosen as the mechanical properties and they are related to the ODF by the method proposed in this study.For the texture analysis, the development of the recrystallized textures is reasoned systematically. The preferred orientations in the recrystallized texture are also made clear by the ODF. The calculated values of the mechanical properties are all in good agreement with the experimentally obtained ones, that is, of Young's modules, Lankford value and the propagation velocity. The square of the propagation velocity is also correlated with the averaged Lankford value as theoretically predicted.