Table of Contents
Texture of Crystalline Solids
Volume 2, Issue 3, Pages 183-203

Deformation Zone Geometry and Texture Gradients in Cold-Rolled Niobium

1Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
2Comision Nacional de Energia Atomica, Buenos Aires, Argentina

Received 22 September 1976

Copyright © 1977 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Several niobium plates were cold-rolled at room temperature to a total reduction of 60% maintaining the geometry of the zone of deformation constant for each plate. Pole figures were obtained by means of the Schulz x-ray reflection technique from various depths in the thickness direction for plates rolled with different ∆, the ratio of the mean height of the deformation zone to its contact length. Severe texture gradients were noted and characterized for Δ>1; a modified texture different from the normal texture was observed at intermediate through-the-thickness locations. Both lateral widening and microhardness gradients were also in evidence for this case. No previously proposed theoretical explanation could account for these results.