Multimodal data analysis for the evaluation of hydrogen diffusion in steal

Abstract

In order to clarify the hydrogen embrittlement of steel materials, which causes cracks and fractures in the materials, time-course hydrogen distribution images of steel samples obtained by electron transition induced desorption (ESD) and the images reflecting crystal structures obtained by scanning electron microscopy (SEM) and backscattered electron diffraction (EBSD) were integrated, and then analyzed as multimodal data to investigate the relationship between hydrogen permeation and crystal structures.