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Title: On single-phase status and segregation of an as-solidified septenary refractory high entropy alloy

Abstract

Phase predictions and characterizations on as-solidified septenary refractory high-entropy alloy, CrMoNbReTaVW, are presented here. The simulated solidification process predicts a single body-centered-cubic (BCC) crystal structure with the tendency of compositional segregation. X-ray diffraction results confirm the “single-phase-like” BCC structure, while further experimental characterizations reveal the existence of multiple grains with significantly different compositions yet the same crystal structure and similar lattice parameters.

Authors:
 [1];  [1];  [2];  [1];  [1]
  1. Louisiana State Univ., Baton Rouge, LA (United States)
  2. National Energy Technology Lab. (NETL), Albany, OR (United States); AECOM Corporation, Albany, OR (United States)
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Albany, OR (United States); AECOM Corporation, Albany, OR (United States); Louisiana State Univ., Baton Rouge, LA (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE); National Science Foundation (NSF)
OSTI Identifier:
1482352
Grant/Contract Number:  
FE0004000; OIA-1541079; LEQSF(2013-16)-RD-B-01
Resource Type:
Accepted Manuscript
Journal Name:
MRS Communications
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2159-6859
Publisher:
Materials Research Society - Cambridge University Press
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Zhang, Boliang, Mu, Yang, Gao, M. C., Meng, W. J., and Guo, S. M. On single-phase status and segregation of an as-solidified septenary refractory high entropy alloy. United States: N. p., 2017. Web. doi:10.1557/mrc.2017.7.
Zhang, Boliang, Mu, Yang, Gao, M. C., Meng, W. J., & Guo, S. M. On single-phase status and segregation of an as-solidified septenary refractory high entropy alloy. United States. doi:10.1557/mrc.2017.7.
Zhang, Boliang, Mu, Yang, Gao, M. C., Meng, W. J., and Guo, S. M. Mon . "On single-phase status and segregation of an as-solidified septenary refractory high entropy alloy". United States. doi:10.1557/mrc.2017.7. https://www.osti.gov/servlets/purl/1482352.
@article{osti_1482352,
title = {On single-phase status and segregation of an as-solidified septenary refractory high entropy alloy},
author = {Zhang, Boliang and Mu, Yang and Gao, M. C. and Meng, W. J. and Guo, S. M.},
abstractNote = {Phase predictions and characterizations on as-solidified septenary refractory high-entropy alloy, CrMoNbReTaVW, are presented here. The simulated solidification process predicts a single body-centered-cubic (BCC) crystal structure with the tendency of compositional segregation. X-ray diffraction results confirm the “single-phase-like” BCC structure, while further experimental characterizations reveal the existence of multiple grains with significantly different compositions yet the same crystal structure and similar lattice parameters.},
doi = {10.1557/mrc.2017.7},
journal = {MRS Communications},
number = 1,
volume = 7,
place = {United States},
year = {2017},
month = {2}
}

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Works referenced in this record:

Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
journal, May 2004

  • Yeh, J.-W.; Chen, S.-K.; Lin, S.-J.
  • Advanced Engineering Materials, Vol. 6, Issue 5, p. 299-303
  • DOI: 10.1002/adem.200300567