|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||LL-42: Monitoring Dislocation Characteristics of Steels during Deformation by TOF Neutron Diffraction
||Takuro Kawasaki, Stefanus Harjo, Wu Gong, Kazuya Aizawa
|On-Site Speaker (Planned)
The microstructural characteristics of dislocations and crystalline sizes are important factors to understand the strengthening mechanisms of metallic materials. The local information of the microstructural characteristics in the material is widely obtained by the electron microscope observation. On the other hand, the line profile analysis on neutron diffraction data is a powerful tool for the evaluation of averaged microstructural characteristics in bulky specimens owing to its high transmittance and large gauge volume. TAKUMI at J-PARC is a high-resolution neutron diffractometer for diffraction study of metals, ceramics and other engineering materials. In order to monitor the evolution of the microstructural characteristics in steels during deformation, in situ neutron diffraction experiments and line profile analyses using the convolutional multiple whole profile (CMWP) fitting method were performed using TAKUMI. The behavior of the density and the arrangement of dislocations in some types of steels during tensile deformation will be presented.
||Planned: A print-only volume