X-ray characterisation of size, strain and texture inhomogeneities in ultra fine grained copper processed by equal channel angular extrusion A. Tidu, F. Wagner, W. H. Huang, P. W. Kao, C. P. Chang et T. GrosdidierJ. Phys. IV France, 10 PR10 (2000) Pr10-211-Pr10-217DOI: https://doi.org/10.1051/jp4:20001023