[P] P60~P73 Mechanical Properties

[P71] TEM Observation of Hydrogen-Induced Vacancy-Type Defects in Nickel

○Kenta Nishizoe¹, Yui Miake¹, Yasuko Ueda², Kazuto Arakawa^2,3 (1. Graduate School of Natural Science and Technology, Shimane University, 2. Next Generation Tatara Co-Creation Centre (NEXTA), Shimane University, 3. Research Center for Ultra-High Voltage Electron Microscopy, The University of Osaka)

Keywords:

Hydrogen embrittlement,Nickel,defect,Transmission Electron Microscope (TEM),Vacancy

Hydrogen-enhanced formation of vacancies and their clusters is considered one of the key factors in hydrogen embrittlement. However, the stable morphology of hydrogen-induced vacancy clusters remains unclear. In this study, we investigated the effect of hydrogen on their stable morphology by TEM observation.