Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/151738
Title: Influences of hydrogen charging method on the hydrogen distribution and nanomechanical properties of face-centered cubic high-entropy alloy : a comparative study
Authors: Zhao, Yaki
Park, Jeong-Min
Lee, Dong-Hyun
Song, Eun Ju
Suh, Jin-Yoo
Ramamurty, Upadrasta
Jang, Jae-il
Keywords: Engineering::Mechanical engineering
Issue Date: 2019
Source: Zhao, Y., Park, J., Lee, D., Song, E. J., Suh, J., Ramamurty, U. & Jang, J. (2019). Influences of hydrogen charging method on the hydrogen distribution and nanomechanical properties of face-centered cubic high-entropy alloy : a comparative study. Scripta Materialia, 168, 76-80. https://dx.doi.org/10.1016/j.scriptamat.2019.04.025
Journal: Scripta Materialia
Abstract: The influence of charging method on hydrogen (H)distribution and the resultant nanomechanical behavior of CoCrFeMnNi high-entropy alloy was examined and compared with another face-centered cubic structured alloy, an austenitic stainless steel. Through thermal desorption spectroscopy measurement and theoretical analysis, it was revealed that electrochemical (E-)charging induces steep gradient of H concentration near the surface while H was homogenously distributed after gaseous (G-)charging. Nanoindentation results show significant hardening in E-charged alloys while the hardness of G-charged alloys remains invariant. These differences were rationalized in terms of the nature of H distributions induced by different charging methods.
URI: https://hdl.handle.net/10356/151738
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2019.04.025
Rights: © 2019 Acta Materialia Inc. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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