In situ neutron diffraction for monitoring of internal stresses, deformation & transformation behavior of engineering materials

Harjo, S.   ; Kawasaki, Takuro   ; Aizawa, Kazuya  

TAKUMI is a pulsed neutron diffractometer dedicated for materials engineering installed in J-PARC. 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 order to carry out these experiments, TAKUMI has developed various sample environmental (SE) devices either independently or together with the users. In the presentation, the SE devices and the scientific trends using in situ ND in TAKUMI with some research examples will be introduced.