A Comparative Study of the Crystallite Size and the Dislocation Density of Bent Steel Plates using Bragg-edge Transmission Imaging, TOF Neutron Diffraction and EBSD

Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): K. Oikawa, Y.H. Su, Y. Tomota, T. Kawasaki, T. Shinohara, T. Kai, K. Hiroi, S.Y. Zhang, J.D. Parker, H. Sato, Y. Kiyanagi Line broadening analysis was performed on the time-of-flight neutron diffraction data for the plastically bent plates of a ferritic steel and a duplex stainless steel. A Rietveld analysis program, Z-Rietveld ver. 1.0 was used to fit the anisotropically broadened patterns where the increase in Lorentzian full width at half maximum (FWHM) and the Gaussian FWHM involves information of the crystallite size and the dislocation density, respectively. The derived results were compared with those obtained by using Bragg-edge transmission spectrum analysis and electron backscatter diffraction (EBSD) observations.

Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research