[2P01-53] Poster Presentation

[2P09] Evaluation of the relationship between hydrogen distribution by operando hydrogen microscope and crystal structures by EBSD

*Yuki Sano¹, Akihiro Fujimaru², Yoshihisa Matsumoto², Daisuke Hayashi¹, Satoka Aoyagi¹ (1. Seikei University, 2. National Institute of Technology, Oita College)

The images obtained with scanning electron microscope (SEM), and electron backscattered diffraction (EBSD), and time-course hydrogen distributions in metals using an operando hydrogen microscope based on electron stimulated desorption (ESD) were fused to clarify the relationship between hydrogen permeation and the crystal stractures. The hydrogen distribution at the vanadium surface was measured with the operando hydrogen microscope for 40 hrs. Hydrogen maps were measured every 150 s, a SEM image, and EBSD images including inverse pole figure (IPF) Kernel Average Misorientation (KAM), band contrast, and Euler angle maps were integrated using image registration (Matlab). The fused image data set was analyzed using multivariate analysis and the relationship between crystal structures and hydrogen permeation was indicated.