Rapid bulk texture measurement using iMATERIA time-of-flight neutron diffraction

Xu, P. G.   ; Hoshikawa, Akinori*; Ishigaki, Toru*; Suzuki, Tetsuya*; Akita, Koichi; Morii, Yukio*; Hayashi, Makoto*; Lutterotti, L.*

The rapid texture measurement of bulk metallic materials is required not only for the precise formability control of commercial sheet products, but also for the thermomechanical process optimization of new materials. Different with the angle dispersive neutron diffraction with a single-tube/1-D neutron detector, the time-of-flight neutron diffraction enables to measure various whole diffraction patterns of a textured material simultaneously at different scattering angles using different neutron detectors. At J-PARC center, iMATERIA time-of-flight neutron diffractometer was employed to establish a reliable technical environment for rapid bulk texture measurements. In order to reduce the measurement time and improve the reliability, the proper refinement of detector stereographic coverage range and the corresponding increment of independent diffraction patterns from different sample orientation are under investigation.