Phase stability and microstructures of high entropy alloys ion irradiated to high doses

Xia, Songqin; Gao, Michael C.; Yang, Tengfei; Liaw, Peter K.; Zhang, Yong

doi:10.1016/j.jnucmat.2016.08.017

Title: Phase stability and microstructures of high entropy alloys ion irradiated to high doses

Abstract

The microstructures of Al_xCoCrFeNi (x = 0.1, 0.75 and 1.5 in molar ratio) high entropy alloys (HEAs) irradiated at room temperature with 3 MeV Au ions at the highest fluence of 105, 91, and 81 displacement per atom, respectively, were studied. Transmission electron microscopy (TEM) and high-resolution TEM (HRTEM) analyses show that the initial microstructures and phase composition of all three alloys are retained after ion irradiation and no phase decomposition is observed. Furthermore, it is demonstrated that the disordered face-centered cubic (FCC) and disordered body-centered cubic (BCC) phases show much less defect cluster formation and structural damage than the NiAl-type ordered B2 phase. This effect is explained by higher entropy of mixing, higher defect formation/migration energies, substantially lower thermal conductivity, and higher atomic level stress in the disordered phases

Authors:

Xia, Songqin ^[1]; Gao, Michael C. ^[2]; Yang, Tengfei ^[3]; Liaw, Peter K. ^[4];

^[1]

Univ. of Science and Technology Beijing (China)
National Energy Technology Lab. (NETL), Albany, OR (United States); AECOM, Albany, OR (United States)
Peking Univ., Beijing (China)
Univ. of Tennessee, Knoxville, TN (United States)

Publication Date:: Thu Aug 18 00:00:00 EDT 2016

Research Org.:: National Energy Technology Lab. (NETL), Albany, OR (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1482339

Alternate Identifier(s):: OSTI ID: 1460117

Grant/Contract Number:: 51471025; B07003; FE-0004000; CMMI-1100080; W911NF-13-1-0438

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Nuclear Materials

Additional Journal Information:: Journal Volume: 480; Journal Issue: C; Journal ID: ISSN 0022-3115

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Xia, Songqin, Gao, Michael C., Yang, Tengfei, Liaw, Peter K., and Zhang, Yong. Phase stability and microstructures of high entropy alloys ion irradiated to high doses.  United States: N. p., 2016. 
Web.  doi:10.1016/j.jnucmat.2016.08.017.

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                    Xia, Songqin, Gao, Michael C., Yang, Tengfei, Liaw, Peter K., & Zhang, Yong. Phase stability and microstructures of high entropy alloys ion irradiated to high doses.  United States.  https://doi.org/10.1016/j.jnucmat.2016.08.017

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                    Xia, Songqin, Gao, Michael C., Yang, Tengfei, Liaw, Peter K., and Zhang, Yong. Thu .  
"Phase stability and microstructures of high entropy alloys ion irradiated to high doses".  United States.  https://doi.org/10.1016/j.jnucmat.2016.08.017.  https://www.osti.gov/servlets/purl/1482339.

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@article{osti_1482339,

  title        = {Phase stability and microstructures of high entropy alloys ion irradiated to high doses},

  author       = {Xia, Songqin and Gao, Michael C. and Yang, Tengfei and Liaw, Peter K. and Zhang, Yong},

  abstractNote = {The microstructures of AlxCoCrFeNi (x = 0.1, 0.75 and 1.5 in molar ratio) high entropy alloys (HEAs) irradiated at room temperature with 3 MeV Au ions at the highest fluence of 105, 91, and 81 displacement per atom, respectively, were studied. Transmission electron microscopy (TEM) and high-resolution TEM (HRTEM) analyses show that the initial microstructures and phase composition of all three alloys are retained after ion irradiation and no phase decomposition is observed. Furthermore, it is demonstrated that the disordered face-centered cubic (FCC) and disordered body-centered cubic (BCC) phases show much less defect cluster formation and structural damage than the NiAl-type ordered B2 phase. This effect is explained by higher entropy of mixing, higher defect formation/migration energies, substantially lower thermal conductivity, and higher atomic level stress in the disordered phases},

  doi          = {10.1016/j.jnucmat.2016.08.017},

  journal      = {Journal of Nuclear Materials},

  number       = C,

  volume       = 480,

  place        = {United States},

  year         = {Thu Aug 18 00:00:00 EDT 2016},

  month        = {Thu Aug 18 00:00:00 EDT 2016}

}

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Title: Phase stability and microstructures of high entropy alloys ion irradiated to high doses

Abstract

Citation Formats

Materials challenges for nuclear systems journal, December 2010

Structural materials challenges for advanced reactor systems journal, March 2009

Structural materials for Gen-IV nuclear reactors: Challenges and opportunities journal, December 2008

Recent Developments in Irradiation-Resistant Steels journal, August 2008

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Irradiation Behavior in High Entropy Alloys journal, October 2015

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Phases, microstructure and mechanical properties of AlxCoCrFeNi high-entropy alloys at elevated temperatures journal, March 2014

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Effects of compositional complexity on the ion-irradiation induced swelling and hardening in Ni-containing equiatomic alloys journal, July 2016

Point defect evolution in Ni, NiFe and NiCr alloys from atomistic simulations and irradiation experiments journal, October 2015

Ru incorporation on marked enhancement of diffusion resistance of multi-component alloy barrier layers journal, February 2011

4-nm thick multilayer structure of multi-component (AlCrRuTaTiZr)Nx as robust diffusion barrier for Cu interconnects journal, February 2012

10-nm-thick quinary (AlCrTaTiZr)N film as effective diffusion barrier for Cu interconnects at 900 °C journal, June 2009

Sluggish diffusion in Co–Cr–Fe–Mn–Ni high-entropy alloys journal, August 2013

Damage accumulation in ion-irradiated Ni-based concentrated solid-solution alloys journal, May 2016

Differences in the accumulation of ion-beam damage in Ni and NiFe explained by atomistic simulations journal, March 2016

Influence of chemical disorder on energy dissipation and defect evolution in concentrated solid solution alloys journal, October 2015

Prediction of thermal conductivity of steel journal, May 2011

A new 12% chromium steel strengthened by Z-phase precipitates journal, March 2016

Void swelling in zirconium journal, May 1980

Designing Radiation Resistance in Materials for Fusion Energy journal, July 2014

Microstructure, thermophysical and electrical properties in AlxCoCrFeNi (0≤x≤2) high-entropy alloys journal, July 2009

Irradiation Resistance of Multicomponent Alloys journal, September 2013

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Aluminum Alloying Effects on Lattice Types, Microstructures, and Mechanical Behavior of High-Entropy Alloys Systems journal, October 2013

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In-situ TEM observation of structural changes in nano-crystalline CoCrCuFeNi multicomponent high-entropy alloy (HEA) under fast electron irradiation by high voltage electron microscopy (HVEM)
journal, April 2015

Irradiation Behavior in High Entropy Alloys
journal, October 2015

Irradiation Resistance in Al x CoCrFeNi High Entropy Alloys
journal, August 2015

Electron-irradiation-induced structural change in Zr–Hf–Nb alloy
journal, July 2012

MeV electron-irradiation-induced structural change in the bcc phase of Zr–Hf–Nb alloy with an approximately equiatomic ratio
journal, July 2013

Ferritic/martensitic steels for next-generation reactors
journal, September 2007

A Brief Review of High Entropy Alloys and Serration Behavior and Flow Units
journal, January 2016

Effects of AL addition on microstructure and mechanical properties of AlxCoCrFeNi High-entropy alloy
journal, November 2015

Phases, microstructure and mechanical properties of AlxCoCrFeNi high-entropy alloys at elevated temperatures
journal, March 2014

Effects of Al addition on the microstructure and mechanical property of AlxCoCrFeNi high-entropy alloys
journal, July 2012

A direct measurement of gross swelling in nickel-ion-bombarded stainless steel
journal, April 1973

Effects of compositional complexity on the ion-irradiation induced swelling and hardening in Ni-containing equiatomic alloys
journal, July 2016

Point defect evolution in Ni, NiFe and NiCr alloys from atomistic simulations and irradiation experiments
journal, October 2015

Ru incorporation on marked enhancement of diffusion resistance of multi-component alloy barrier layers
journal, February 2011

4-nm thick multilayer structure of multi-component (AlCrRuTaTiZr)Nx as robust diffusion barrier for Cu interconnects
journal, February 2012

10-nm-thick quinary (AlCrTaTiZr)N film as effective diffusion barrier for Cu interconnects at 900 °C
journal, June 2009

Sluggish diffusion in Co–Cr–Fe–Mn–Ni high-entropy alloys
journal, August 2013

Damage accumulation in ion-irradiated Ni-based concentrated solid-solution alloys
journal, May 2016

Differences in the accumulation of ion-beam damage in Ni and NiFe explained by atomistic simulations
journal, March 2016

Influence of chemical disorder on energy dissipation and defect evolution in concentrated solid solution alloys
journal, October 2015

Prediction of thermal conductivity of steel
journal, May 2011

A new 12% chromium steel strengthened by Z-phase precipitates
journal, March 2016

Void swelling in zirconium
journal, May 1980

Designing Radiation Resistance in Materials for Fusion Energy
journal, July 2014

Microstructure, thermophysical and electrical properties in AlxCoCrFeNi (0≤x≤2) high-entropy alloys
journal, July 2009

Irradiation Resistance of Multicomponent Alloys
journal, September 2013

Lattice thermal conductivity of multi-component alloys
journal, November 2015

Aluminum Alloying Effects on Lattice Types, Microstructures, and Mechanical Behavior of High-Entropy Alloys Systems
journal, October 2013

Local Electronic Effects and Irradiation Resistance in High-Entropy Alloys
journal, August 2015

Microstructural stability and mechanical behavior of FeNiMnCr high entropy alloy under ion irradiation
journal, July 2016

Materials challenges in nuclear energy
journal, February 2013

Radiation-induced degradation of stainless steel light water reactor internals
journal, July 2012

Science and technology in high-entropy alloys
journal, January 2018

Configurational Entropy in Multicomponent Alloys: Matrix Formulation from Ab Initio Based Hamiltonian and Application to the FCC Cr-Fe-Mn-Ni System
journal, January 2019

A Novel Low-Activation VCrFeTaxWx (x = 0.1, 0.2, 0.3, 0.4, and 1) High-Entropy Alloys with Excellent Heat-Softening Resistance
journal, December 2018

Mechanical properties and thermal stability of (NbTiAlSiZr)N _x high-entropy ceramic films at high temperatures
journal, October 2018