13th International Conference on Fracture June 16–21, 2013, Beijing, China -7- 25 μm Fig. 8. Results of EBSD analyses obtained for the transverse cross-section at ceneter of B specimen. (a) SE image, (b) IPF map along z axis, (c) IPF map along x axis, (d) IPF map along y axis, (e) IP figure along z axis, (e) IP figure along x axis, and (f) IP figure along y axis. (a) z axis (b) x axis (a) z axis (b) x axis Fig. 9. IPF maps of transverse cross-section Fig. 10. IPF maps of transverse cross-section at center of A specimen. at center of C specimen. consisted of fibrous grains of 3.9 μm diameter elongated in the extrusion direction, but is regarded as having the single-crystal-like nature within several 10 μm in the transverse directions. These trends are common in all specimens investigated. However A specimen exhibits a larger fraction of <001> grains, as is shown in Fig. 9 (a). 3.4 XRD profiles Fig. 12 shows the XRD peaks taken from the transverse cross-section in B specimen. The height of (111) reflection peak was considerably large in all of the specimens due to the texture of <111> 25 μm 25 μm 25 μm l x y z 25 μm 25 μm 25 μm (a) (b) (c) (d) (e) (f) (g)
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