Method of Representing Preferred Orientation Data

Abstract

For the fiber‐texture type of preferred orientation, a method is developed for determining the ``fiber axis density'' from the ``pole density'' given by x‐ray diffraction data. The fiber axis distribution so deduced gives directly and quantitatively the type and degree of preferred orientation—the more preferred crystallographic directions of the fiber axis, the symmetries of the orientation distribution about the preferred directions, and the relative volumes of material associated with the various components. The procedure is demonstrated for extruded aluminum rod. The method is adapted to the study of the sheet‐texture type of preferred orientation and applied in determining the textures in cold‐rolled 65–35 brass and 2S aluminum sheet.