Element Effects on High-Entropy Alloy Vacancy and Heterogeneous Lattice Distortion Subjected to Quasi-equilibrium Heating

We applied Simmons–Balluffi methods, positron measurements, and neutron diffraction to estimate the vacancy of CoCrFeNi and CoCrFeMnNi high-entropy alloys (HEAs) using Cu as a benchmark. The corresponding formation enthalpies and associated entropies of the HEAs and Cu were calculated. The vacancy-d...

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Autores principales: Huang, E-Wen, Chou, Hung-Sheng, Tu, K. N., Hung, Wei-Song, Lam, Tu-Ngoc, Tsai, Che-Wei, Chiang, Ching-Yu, Lin, Bi-Hsuan, Yeh, An-Chou, Chang, Shan-Hsiu, Chang, Yao-Jen, Yang, Jun-Jie, Li, Xiao-Yun, Ku, Ching-Shun, An, Ke, Chang, Yuan-Wei, Jao, Yu-Lun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6794270/
https://www.ncbi.nlm.nih.gov/pubmed/31616021
http://dx.doi.org/10.1038/s41598-019-51297-4
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author Huang, E-Wen
Chou, Hung-Sheng
Tu, K. N.
Hung, Wei-Song
Lam, Tu-Ngoc
Tsai, Che-Wei
Chiang, Ching-Yu
Lin, Bi-Hsuan
Yeh, An-Chou
Chang, Shan-Hsiu
Chang, Yao-Jen
Yang, Jun-Jie
Li, Xiao-Yun
Ku, Ching-Shun
An, Ke
Chang, Yuan-Wei
Jao, Yu-Lun
author_facet Huang, E-Wen
Chou, Hung-Sheng
Tu, K. N.
Hung, Wei-Song
Lam, Tu-Ngoc
Tsai, Che-Wei
Chiang, Ching-Yu
Lin, Bi-Hsuan
Yeh, An-Chou
Chang, Shan-Hsiu
Chang, Yao-Jen
Yang, Jun-Jie
Li, Xiao-Yun
Ku, Ching-Shun
An, Ke
Chang, Yuan-Wei
Jao, Yu-Lun
author_sort Huang, E-Wen
collection PubMed
description We applied Simmons–Balluffi methods, positron measurements, and neutron diffraction to estimate the vacancy of CoCrFeNi and CoCrFeMnNi high-entropy alloys (HEAs) using Cu as a benchmark. The corresponding formation enthalpies and associated entropies of the HEAs and Cu were calculated. The vacancy-dependent effective free volumes in both CoCrFeNi and CoCrFeMnNi alloys are greater than those in Cu, implying the easier formation of vacancies by lattice structure relaxation of HEAs at elevated temperatures. Spatially resolved synchrotron X-ray measurements revealed different characteristics of CoCrFeNi and CoCrFeMnNi HEAs subjected to quasi-equilibrium conditions at high temperatures. Element-dependent behavior revealed by X-ray fluorescence (XRF) mapping indicates the effect of Mn on the Cantor Alloy.
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spelling pubmed-67942702019-10-21 Element Effects on High-Entropy Alloy Vacancy and Heterogeneous Lattice Distortion Subjected to Quasi-equilibrium Heating Huang, E-Wen Chou, Hung-Sheng Tu, K. N. Hung, Wei-Song Lam, Tu-Ngoc Tsai, Che-Wei Chiang, Ching-Yu Lin, Bi-Hsuan Yeh, An-Chou Chang, Shan-Hsiu Chang, Yao-Jen Yang, Jun-Jie Li, Xiao-Yun Ku, Ching-Shun An, Ke Chang, Yuan-Wei Jao, Yu-Lun Sci Rep Article We applied Simmons–Balluffi methods, positron measurements, and neutron diffraction to estimate the vacancy of CoCrFeNi and CoCrFeMnNi high-entropy alloys (HEAs) using Cu as a benchmark. The corresponding formation enthalpies and associated entropies of the HEAs and Cu were calculated. The vacancy-dependent effective free volumes in both CoCrFeNi and CoCrFeMnNi alloys are greater than those in Cu, implying the easier formation of vacancies by lattice structure relaxation of HEAs at elevated temperatures. Spatially resolved synchrotron X-ray measurements revealed different characteristics of CoCrFeNi and CoCrFeMnNi HEAs subjected to quasi-equilibrium conditions at high temperatures. Element-dependent behavior revealed by X-ray fluorescence (XRF) mapping indicates the effect of Mn on the Cantor Alloy. Nature Publishing Group UK 2019-10-15 /pmc/articles/PMC6794270/ /pubmed/31616021 http://dx.doi.org/10.1038/s41598-019-51297-4 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Huang, E-Wen
Chou, Hung-Sheng
Tu, K. N.
Hung, Wei-Song
Lam, Tu-Ngoc
Tsai, Che-Wei
Chiang, Ching-Yu
Lin, Bi-Hsuan
Yeh, An-Chou
Chang, Shan-Hsiu
Chang, Yao-Jen
Yang, Jun-Jie
Li, Xiao-Yun
Ku, Ching-Shun
An, Ke
Chang, Yuan-Wei
Jao, Yu-Lun
Element Effects on High-Entropy Alloy Vacancy and Heterogeneous Lattice Distortion Subjected to Quasi-equilibrium Heating
title Element Effects on High-Entropy Alloy Vacancy and Heterogeneous Lattice Distortion Subjected to Quasi-equilibrium Heating
title_full Element Effects on High-Entropy Alloy Vacancy and Heterogeneous Lattice Distortion Subjected to Quasi-equilibrium Heating
title_fullStr Element Effects on High-Entropy Alloy Vacancy and Heterogeneous Lattice Distortion Subjected to Quasi-equilibrium Heating
title_full_unstemmed Element Effects on High-Entropy Alloy Vacancy and Heterogeneous Lattice Distortion Subjected to Quasi-equilibrium Heating
title_short Element Effects on High-Entropy Alloy Vacancy and Heterogeneous Lattice Distortion Subjected to Quasi-equilibrium Heating
title_sort element effects on high-entropy alloy vacancy and heterogeneous lattice distortion subjected to quasi-equilibrium heating
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6794270/
https://www.ncbi.nlm.nih.gov/pubmed/31616021
http://dx.doi.org/10.1038/s41598-019-51297-4
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