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Title: High-entropy alloys in hexagonal close-packed structure

Abstract

The microstructures and properties of high-entropy alloys (HEAs) based on the face-centered cubic and body-centered cubic structures have been studied extensively in the literature, but reports on HEAs in the hexagonal close-packed (HCP) structure are very limited. Using an efficient strategy in combining phase diagram inspection, CALPHAD modeling, and ab initio molecular dynamics simulations, a variety of new compositions are suggested that may hold great potentials in forming single-phase HCP HEAs that comprise rare earth elements and transition metals, respectively. Lastly, experimental verification was carried out on CoFeReRu and CoReRuV using X-ray diffraction, scanning electron microscopy, and energy dispersion spectroscopy.

Authors:
 [1];  [2];  [2];  [3];  [1]
  1. National Energy Technology Lab. (NETL), Albany, OR (United States)
  2. Louisiana State Univ., Baton Rouge, LA (United States)
  3. Taiyuan Univ. of Technology, Taiyuan (China)
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Albany, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1338297
Report Number(s):
CONTR-PUB-146
Journal ID: ISSN 1073-5623; PII: 3091
Grant/Contract Number:  
FE0004000
Resource Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 47; Journal Issue: 7; Journal ID: ISSN 1073-5623
Publisher:
ASM International
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Gao, Michael C., Zhang, B., Guo, S. M., Qiao, J. W., and Hawk, J. A.. High-entropy alloys in hexagonal close-packed structure. United States: N. p., 2015. Web. https://doi.org/10.1007/s11661-015-3091-1.
Gao, Michael C., Zhang, B., Guo, S. M., Qiao, J. W., & Hawk, J. A.. High-entropy alloys in hexagonal close-packed structure. United States. https://doi.org/10.1007/s11661-015-3091-1
Gao, Michael C., Zhang, B., Guo, S. M., Qiao, J. W., and Hawk, J. A.. Fri . "High-entropy alloys in hexagonal close-packed structure". United States. https://doi.org/10.1007/s11661-015-3091-1. https://www.osti.gov/servlets/purl/1338297.
@article{osti_1338297,
title = {High-entropy alloys in hexagonal close-packed structure},
author = {Gao, Michael C. and Zhang, B. and Guo, S. M. and Qiao, J. W. and Hawk, J. A.},
abstractNote = {The microstructures and properties of high-entropy alloys (HEAs) based on the face-centered cubic and body-centered cubic structures have been studied extensively in the literature, but reports on HEAs in the hexagonal close-packed (HCP) structure are very limited. Using an efficient strategy in combining phase diagram inspection, CALPHAD modeling, and ab initio molecular dynamics simulations, a variety of new compositions are suggested that may hold great potentials in forming single-phase HCP HEAs that comprise rare earth elements and transition metals, respectively. Lastly, experimental verification was carried out on CoFeReRu and CoReRuV using X-ray diffraction, scanning electron microscopy, and energy dispersion spectroscopy.},
doi = {10.1007/s11661-015-3091-1},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 7,
volume = 47,
place = {United States},
year = {2015},
month = {8}
}

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Cited by: 23 works
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