Please use this identifier to cite or link to this item:
|Title:||Influence of hydrogen on incipient plasticity in CoCrFeMnNi high-entropy alloy||Authors:||Yang, Guanghui
|Keywords:||Engineering::Materials||Issue Date:||2019||Source:||Yang, G., Zhao, Y., Lee, D., Park, J., Seok, M., Suh, J., Ramamurty, U. & Jang, J. (2019). Influence of hydrogen on incipient plasticity in CoCrFeMnNi high-entropy alloy. Scripta Materialia, 161, 23-27. https://dx.doi.org/10.1016/j.scriptamat.2018.10.010||Journal:||Scripta Materialia||Abstract:||The influence of hydrogen on the onset of plastic deformation in a CoCrFeMnNi high-entropy alloy (HEA) was examined through the analysis of the load at which first pop-in during spherical nanoindentation experiments occurs on hydrogen-charged and subsequently aged specimens. Results reveal that the dissolved hydrogen lowers the plastic flow resistance, indicated by the shear yield strength, τy, by modifying defect formation energies. Aging, subsequent to charging, leads to recovery of τy, but only partially. The results are discussed in terms of the vacancy-mediated dislocation nucleation, which is supported by the estimated activation volume for deformation.||URI:||https://hdl.handle.net/10356/151268||ISSN:||1359-6462||DOI:||10.1016/j.scriptamat.2018.10.010||Rights:||© 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MAE Journal Articles|
Updated on Oct 15, 2021
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.