The effects of rolling procedures on the development of rolling textures in pure tungsten thin sheet were investigated by means of X-ray diffraction technique. Also, the morphologies of the cell structure and microstructure for final rolled tungsten thin sheets were observed by use of electron and optical microscopy, respectively. The results obtained were summarized as follows:
(1) The rolling textures in tungsten were similar to those obtained for other pure b.c.c metals, i.e. three principal components {001} ‹110›, {111} ‹112› and {112} ‹110› for straight rolling, two principal components {001} ‹110› and {111} ‹112› for cross rolling and two principal components {001} ‹110›, {111} ‹112› and subcomponent of {112} ‹110› for combination of straight and cross rollings. However, for all rolling procedures studied, a drastic development of the component of {111} ‹hkl› was recognized above about 97% in rolling reduction.
(2) The morphologies of the cell structure and microstructure for final rolled tungsten thin sheets were characterized by rolling procedure, i.e. a strong subfibrous structure with long shaped cells for straight rolling and a weak subfibrous structure with larger and more regulary shaped cells for cross rolling.
(3) The subfibrous structure obtained from the combination of straight and cross rollings was found to be most suitable for deep drawing.