Abstract
Since the first scientific paper on the directionality of the mechanical properties of sheet steel was published by Phillips and Dunkle in 1935, much research has been conducted for a basic understanding of this phenomenon and to control the directionality so as to obtain improved properties. Directionality or anisotropy is due to preferred orientation of grains in the fully processed mill-annealed sheet material. Different types of preferred orientation or texture give rise to significant differences in the average plastic anisotropy ratio r, which is a measure of cup drawability. The present paper focuses on the influence of texture on the r-value. The relationship between mechanical anisotropy and crystallography is discussed in detail. Methods of industrial control of texture through suitable modifications in composition and processing parameters are reviewed. The current understanding of the mechanism of texture development in various grades of conventional and new types of deepdrawing steels is also summarized.
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