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Report No.

Engineering materials diffractometer TAKUMI and scientific trends

Harjo, S.   ; Kawasaki, Takuro  ; Gong, W.*; Yamashita, Takayuki; Morooka, Satoshi  ; Suzuki, Hiroshi  ; Aizawa, Kazuya  

TAKUMI is a time-of-flight neutron diffractometer dedicated for engineering materials sciences, which was installed at beamline 19 in Materials and Life Science Experimental Facility of J-PARC. Careful analysis of the Bragg peaks in a neutron diffraction pattern can reveal important structural details of a sample material such as internal stresses, phase conditions, dislocations, texture etc. Experiments in TAKUMI vary from internal strain mapping in engineering components, microstructural evolutions during deformations of structural or functional materials at various temperatures, microstructural evolutions during manufacturing (thermo-mechanical) processes, as well as texture analyses of engineering materials. In the presentation, the current status of TAKUMI, its sample environmental devices, the scientific trends in TAKUMI and some research examples will be introduced.



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