A new strategy to design eutectic high-entropy alloys using simple mixture method

Jiang, Hui; Han, Kaiming; Gao, Xiaoxia; Lu, Yiping; Cao, Zhiqiang; Gao, Michael C.; Hawk, Jeffrey A.; Li, Tingju

doi:10.1016/j.matdes.2018.01.025

Title: A new strategy to design eutectic high-entropy alloys using simple mixture method

Abstract

Eutectic high entropy alloys (EHEAs) hold promising industrial application potential, but how to design EHEA compositions remains challenging. In the present work, a simple and effective strategy by combining mixing enthalpy and constituent binary eutectic compositions was proposed to design EHEA compositions. This strategy was then applied to a series of (CoCrFeNi)M_x (M = Nb, Ta, Zr, Hf) HEAs, leading to the discovery of new EHEAs, namely, CoCrFeNiNb_0.45, CoCrFeNiTa_0.4, CoCrFeNiZr_0.55 and CoCrFeNiHf_0.4. The microstructure of these new EHEAs comprised of FCC and Laves phases in the as-cast state. In conclusion, the experimental result shows that this new alloy design strategy can be used to locate new EHEAs effectively.

Authors:

Jiang, Hui ^[1]; Han, Kaiming ^[1]; Gao, Xiaoxia ^[1];

^[1]; Cao, Zhiqiang ^[1]; Gao, Michael C. ^[2]; Hawk, Jeffrey A. ^[3]; Li, Tingju ^[1]

Dalian Univ. of Technology, Dalian (China). Key Lab. of Solidification Control and Digital Preparation Technology (Liaoning Province), School of Materials Science and Engineering
National Energy Technology Lab. (NETL), Albany, OR (United States); AECOM, Albany, OR (United States)
National Energy Technology Lab. (NETL), Albany, OR (United States)

Publication Date:: Sat Jan 13 00:00:00 EST 2018

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1455422

Alternate Identifier(s):: OSTI ID: 1734371

Grant/Contract Number:: FE0004000; FE-0004000

Resource Type:: Accepted Manuscript

Journal Name:: Materials & Design

Additional Journal Information:: Journal Volume: 142; Journal Issue: C; Journal ID: ISSN 0264-1275

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Eutectic high entropy alloys; Microstructure; Alloy design

Citation Formats


                    Jiang, Hui, Han, Kaiming, Gao, Xiaoxia, Lu, Yiping, Cao, Zhiqiang, Gao, Michael C., Hawk, Jeffrey A., and Li, Tingju. A new strategy to design eutectic high-entropy alloys using simple mixture method.  United States: N. p., 2018. 
Web.  doi:10.1016/j.matdes.2018.01.025.

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                    Jiang, Hui, Han, Kaiming, Gao, Xiaoxia, Lu, Yiping, Cao, Zhiqiang, Gao, Michael C., Hawk, Jeffrey A., & Li, Tingju. A new strategy to design eutectic high-entropy alloys using simple mixture method.  United States.  https://doi.org/10.1016/j.matdes.2018.01.025

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                    Jiang, Hui, Han, Kaiming, Gao, Xiaoxia, Lu, Yiping, Cao, Zhiqiang, Gao, Michael C., Hawk, Jeffrey A., and Li, Tingju. Sat .  
"A new strategy to design eutectic high-entropy alloys using simple mixture method".  United States.  https://doi.org/10.1016/j.matdes.2018.01.025.  https://www.osti.gov/servlets/purl/1455422.

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@article{osti_1455422,

  title        = {A new strategy to design eutectic high-entropy alloys using simple mixture method},

  author       = {Jiang, Hui and Han, Kaiming and Gao, Xiaoxia and Lu, Yiping and Cao, Zhiqiang and Gao, Michael C. and Hawk, Jeffrey A. and Li, Tingju},

  abstractNote = {Eutectic high entropy alloys (EHEAs) hold promising industrial application potential, but how to design EHEA compositions remains challenging. In the present work, a simple and effective strategy by combining mixing enthalpy and constituent binary eutectic compositions was proposed to design EHEA compositions. This strategy was then applied to a series of (CoCrFeNi)Mx (M = Nb, Ta, Zr, Hf) HEAs, leading to the discovery of new EHEAs, namely, CoCrFeNiNb0.45, CoCrFeNiTa0.4, CoCrFeNiZr0.55 and CoCrFeNiHf0.4. The microstructure of these new EHEAs comprised of FCC and Laves phases in the as-cast state. In conclusion, the experimental result shows that this new alloy design strategy can be used to locate new EHEAs effectively.},

  doi          = {10.1016/j.matdes.2018.01.025},

  journal      = {Materials & Design},

  number       = C,

  volume       = 142,

  place        = {United States},

  year         = {Sat Jan 13 00:00:00 EST 2018},

  month        = {Sat Jan 13 00:00:00 EST 2018}

}

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https://doi.org/10.1016/j.matdes.2018.01.025

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Cited by: 109 works

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Table 1: The phase composition for typical EHEAs

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Works referenced in this record:

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A eutectic high-entropy alloy with good high-temperature strength-plasticity balance
text, January 2019

Han, Liuliu; Xu, Xiandong; Wang, Li
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Microstructure and mechanical properties variation with Ni content in Al _0.8 CoCr _0.6 Fe _0.7 Ni _x ( x = 1.1, 1.5, 1.8, 2.0) eutectic high-entropy alloy system
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Title: A new strategy to design eutectic high-entropy alloys using simple mixture method

Abstract

Citation Formats

Figures / Tables:

Microstructures and properties of high-entropy alloys journal, April 2014

A Promising New Class of High-Temperature Alloys: Eutectic High-Entropy Alloys journal, August 2014

Directly cast bulk eutectic and near-eutectic high entropy alloys with balanced strength and ductility in a wide temperature range journal, February 2017

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Anomalous solidification microstructures in Co-free AlxCrCuFeNi2 high-entropy alloys journal, April 2013

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Microstructure and mechanical properties of the new Nb25Sc25Ti25Zr25 eutectic high entropy alloy journal, January 2016

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An understanding of high entropy alloys from phase diagram calculations journal, June 2014

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Co-Ta (Cobalt-Tantalum) journal, November 2004

Fe-Ta (Iron-Tantalum) journal, December 2012

Cr-Ta (chromium-tantalum) journal, October 1996

Co-Zr (Cobalt-Zirconium) journal, January 2011

Ni-Zr (Nickel-Zirconium) journal, June 2007

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The Cr−Hf (Chromium-Hafnium) system journal, December 1986

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