Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys
The effect of marked change in grain size from coarse-grained to nanocrystalline can affect the hydrogen absorption and plastic deformation behavior in two face-centered cubic high-entropy alloys (HEAs), viz. equiatomic CoCrFeNi and CoCrFeMnNi. Thermal desorption analysis of the hydrogen-charged sam...
Saved in:
Main Authors: | , , , , , , , , |
---|---|
Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/157015 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-157015 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-1570152022-04-29T07:28:05Z Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys Zhao, Yakai Park, Jeong-Min Murakami, Kotaro Komazaki, Shin-ichi Kawasaki, Megumi Tsuchiya, Koichi Suh, Jin-Yoo Ramamurty, Upadrasta Jang, Jae-il School of Mechanical and Aerospace Engineering Institute of Materials Research and Engineering, A*STAR Engineering::Mechanical engineering Nanocrystalline Hydrogen The effect of marked change in grain size from coarse-grained to nanocrystalline can affect the hydrogen absorption and plastic deformation behavior in two face-centered cubic high-entropy alloys (HEAs), viz. equiatomic CoCrFeNi and CoCrFeMnNi. Thermal desorption analysis of the hydrogen-charged samples proved that grain boundaries act as hydrogen traps and thus largely increase the hydrogen contents in the nanocrystalline samples. A direct comparison in the hydrogen absorption between two HEAs confirms that both chemical composition and grain size are crucial factors contributing to the hydrogen solubility of the HEAs. The parameters for the thermally activated deformation from nanoindentation rate-jump tests suggest enhanced lattice friction by hydrogen, leading to a reduction in activation volume and thus modification of the plastic deformation processes. The results are discussed in two aspects, viz. the effect of grain size and chemical composition on the hydrogen-affected plastic deformation. Agency for Science, Technology and Research (A*STAR) Submitted/Accepted version The work at Hanyang University was supported by the National Research Foundation of Korea (NRF) grants funded by the Korea government (MSIT) (No. 2020R1A2B5B01001446 and No. 2020R1A5A6017701). The work at Nanyang Technological University was supported by the funding from A∗STAR via the Structural Metals and Alloys Programme (No. A18B1b0061). The work at Kagoshima University was supported by JSPS KAKENHI grant number 21K04694 (Grant-in-Aid for Scientific Research (C)). The work at Oregon State University was supported by the National Science Foundation (NSF) of the United States (No. DMR-1810343). The work at NIMS was supported by a Grant-in-Aid for Scientific Research on Innovative Area, “High-Entropy Alloys-Science of New Class of Materials Based on Elemental Multiplicity and Heterogeneity” through MEXT, Japan (contract no. 18H05451). 2022-04-29T07:28:05Z 2022-04-29T07:28:05Z 2021 Journal Article Zhao, Y., Park, J., Murakami, K., Komazaki, S., Kawasaki, M., Tsuchiya, K., Suh, J., Ramamurty, U. & Jang, J. (2021). Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys. Scripta Materialia, 203, 114069-. https://dx.doi.org/10.1016/j.scriptamat.2021.114069 1359-6462 https://hdl.handle.net/10356/157015 10.1016/j.scriptamat.2021.114069 2-s2.0-85109006079 203 114069 en A18B1b0061 Scripta Materialia © 2021 Acta Materialia Inc. All rights reserved. This paper was published by Elsevier Ltd in Scripta Materialia and is made available with permission of Acta Materialia Inc. application/pdf |
institution |
Nanyang Technological University |
building |
NTU Library |
continent |
Asia |
country |
Singapore Singapore |
content_provider |
NTU Library |
collection |
DR-NTU |
language |
English |
topic |
Engineering::Mechanical engineering Nanocrystalline Hydrogen |
spellingShingle |
Engineering::Mechanical engineering Nanocrystalline Hydrogen Zhao, Yakai Park, Jeong-Min Murakami, Kotaro Komazaki, Shin-ichi Kawasaki, Megumi Tsuchiya, Koichi Suh, Jin-Yoo Ramamurty, Upadrasta Jang, Jae-il Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys |
description |
The effect of marked change in grain size from coarse-grained to nanocrystalline can affect the hydrogen absorption and plastic deformation behavior in two face-centered cubic high-entropy alloys (HEAs), viz. equiatomic CoCrFeNi and CoCrFeMnNi. Thermal desorption analysis of the hydrogen-charged samples proved that grain boundaries act as hydrogen traps and thus largely increase the hydrogen contents in the nanocrystalline samples. A direct comparison in the hydrogen absorption between two HEAs confirms that both chemical composition and grain size are crucial factors contributing to the hydrogen solubility of the HEAs. The parameters for the thermally activated deformation from nanoindentation rate-jump tests suggest enhanced lattice friction by hydrogen, leading to a reduction in activation volume and thus modification of the plastic deformation processes. The results are discussed in two aspects, viz. the effect of grain size and chemical composition on the hydrogen-affected plastic deformation. |
author2 |
School of Mechanical and Aerospace Engineering |
author_facet |
School of Mechanical and Aerospace Engineering Zhao, Yakai Park, Jeong-Min Murakami, Kotaro Komazaki, Shin-ichi Kawasaki, Megumi Tsuchiya, Koichi Suh, Jin-Yoo Ramamurty, Upadrasta Jang, Jae-il |
format |
Article |
author |
Zhao, Yakai Park, Jeong-Min Murakami, Kotaro Komazaki, Shin-ichi Kawasaki, Megumi Tsuchiya, Koichi Suh, Jin-Yoo Ramamurty, Upadrasta Jang, Jae-il |
author_sort |
Zhao, Yakai |
title |
Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys |
title_short |
Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys |
title_full |
Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys |
title_fullStr |
Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys |
title_full_unstemmed |
Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys |
title_sort |
exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/157015 |
_version_ |
1734310156830769152 |