Kim, Han-Jin Cho, Min-Kyung Kim, Gyeungho Lee, Seung-Yong Jo, Min-Gu Kim Hayoung Suh, Jin-Yoo Lee, Joonho 2024-01-19T11:01:11Z 2024-01-19T11:01:11Z 2022-05-27 2022-11 1598-9623 https://pubs.kist.re.kr/handle/201004/114443 Hydrogen-induced variation of stacking fault energy (SFE) of a CrMnFeCoNi high-entropy alloy (HEA) was quantitatively evaluated by transmission electron microscopy (TEM) using weak-beam dark-field (WBDF) technique. Width of Shockley partial dislocations turned out to increase after hydrogen absorption, which indicates that hydrogen decreases the SFE of the alloy: from 31.5 +/- 3.5 to 22.5 +/- 2.5 mJm(-2) by introduction of hydrogen into the lattice with approximate concentration of 115 wppm. This report provides the first direct observation of stacking faults under the influence of hydrogen in a face-centered cubic metallic structure. English 대한금속·재료학회 Influence of Hydrogen Absorption on Stacking Fault of Energy of a Face-Centered Cubic High Entropy Alloy Article 10.1007/s12540-021-01163-8 1 Metals and Materials International, v.28, no.11, pp.2637 - 2645 Metals and Materials International 28 11 2637 2645 N scie scopus kci ART002893439 000795758900001 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article; Early Access TEMPERATURE-DEPENDENCE MECHANICAL-PROPERTIES STAINLESS-STEELS ELASTIC-MODULI EMBRITTLEMENT RESISTANCE MICROSTRUCTURE COEFFICIENT TENSILE High entropy alloy Hydrogen embrittlement Stacking fault energy Weak-beam dark-field