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Report No.

Establishment and application of texture evaluation technical environment by angle dispersive neutron diffraction

Xu, P. G.   ; Akita, Koichi; Suzuki, Hiroshi  ; Moriai, Atsushi

Though the X-ray diffraction and the electron backscattering diffraction are usually used in the texture evaluation, the neutron diffraction can directly measure the bulk textures of various materials and provide high statistical texture information for predicting the material anisotropic property thanks to the large beam spot and the high matter penetrability, and it can also help to clarify the in situ microstructure evolution under various loading/temperature environments. According to the difference in neutron beam sources, the neutron diffractometers are generally divided into the nuclear reactor-based angle-dispersive instruments and the spallation source-based time-of-flight instruments. At the Japan Research Reactor No.3 and the Japan Proton Accelerator Research Complex, the angle dispersive neutron diffractometers and the time-of-flight neutron diffractometers provide us the possibility to develop and apply the bulk texture evaluation technique to study metallic, ceramic, polymeric, and geologic crystallographic materials. In this presentation, the characteristics of single-tube and 1-demisional position- sensitive-detector angle dispersive neutron diffractometer was simply introduced and its application on the bulk texture evaluation of a magnesium alloy before and after warm press deformation is reported.



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