Recrystallization of BCC Metals: Distribution of Strain Hardening and Texture Formation

Abstract:

Data are presented on the x-ray line broadening distribution over the texture of cold-rolled Nb and Mo sheets. The method of generalized X-ray pole figures, which combine texture measurements with X-ray line profile analysis, is employed. The X-ray line broadening is considered as an indicator of residual deformation effects. It was revealed that these effects in cold-rolled BCC metals rise as the grain orientation shifts away from texture maxima towards texture minima. The intensity of X-ray reflections change during annealing at 200 – 500C and this change correlates with the line broadening. The recrystallization texture of BCC metals is dominated by orientations deflected from the peak maxima by 25 – 30 deg. These orientations in the deformed structure have relatively high stored energy. Their volume fraction is sufficient for them to be able to consume most of the deformed matrix.

• Periodical: Materials Science Forum (Volume 753)
• Pages: 534-537
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.753.534
• Online since: March 2013
• Authors: Yuriy Perlovich, Margarita Isaenkova, Olga Krymskaya
• Keywords: Primary Recrystallization, Recovery, Strain Hardening, Texture

References

[1] Yu. Perlovich, H.J. Bunge, M. Isaenkova, Inhomogeneous distribution of residual deformation effects in textured bcc metals, Textures & Microstructures 29 (1997) 241-266.

DOI: 10.1155/tsm.29.241

[2] Yu. Perlovich, H.J. Bunge, M. Isaenkova, Structure inhomogeneity of rolled textured niobium, Z. Metallkunde / Materials Research and Advanced Techniques 91 (2000) 149-159.