Influence of irradiation temperature on void swelling in NiCoFeCrMn and NiCoFeCrPd

doi:10.1016/j.scriptamat.2018.08.021

Title: Influence of irradiation temperature on void swelling in NiCoFeCrMn and NiCoFeCrPd

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Abstract

Here, using ion irradiation and transmission electron microscopy, temperature dependent void swelling and dislocation loop evolution in equiatomic NiCoFeCrMn and NiCoFeCrPd high entropy alloys were investigated. Voids were observed in all tested conditions. An order higher of swelling was observed in both HEAs as temperature increased from 420 to 580 °C. Alloying with Pd was found to have a stronger suppression effect on void and dislocation loop growth than alloying with Mn. Possible contributions to the swelling resistance were explored, including localized lattice distortion and higher defect migration barrier in NiCoFeCrPd. Additionally, no phase decomposition was observed in either alloy.

Authors:

Yang, Tai-ni ^[1]; Lu, Chenyang ^[1];

^[2];

^[2]; Xiu, Pengyuan ^[1];

^[3];

^[2]; Wang, Lumin ^[4]

Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences, and Dept. of Materials Science Engineering

Publication Date:: 2018-08-28

Research Org.:: Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1482440

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Scripta Materialia

Additional Journal Information:: Journal Volume: 158; Journal Issue: C; Journal ID: ISSN 1359-6462

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Yang, Tai-ni, Lu, Chenyang, Velisa, Gihan, Jin, Ke, Xiu, Pengyuan, Zhang, Yanwen, Bei, Hongbin, and Wang, Lumin. Influence of irradiation temperature on void swelling in NiCoFeCrMn and NiCoFeCrPd.  United States: N. p., 2018. 
        Web.  doi:10.1016/j.scriptamat.2018.08.021.

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                    Yang, Tai-ni, Lu, Chenyang, Velisa, Gihan, Jin, Ke, Xiu, Pengyuan, Zhang, Yanwen, Bei, Hongbin, & Wang, Lumin. Influence of irradiation temperature on void swelling in NiCoFeCrMn and NiCoFeCrPd.  United States.  doi:10.1016/j.scriptamat.2018.08.021.

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                    Yang, Tai-ni, Lu, Chenyang, Velisa, Gihan, Jin, Ke, Xiu, Pengyuan, Zhang, Yanwen, Bei, Hongbin, and Wang, Lumin. Tue .  
        "Influence of irradiation temperature on void swelling in NiCoFeCrMn and NiCoFeCrPd".  United States.  doi:10.1016/j.scriptamat.2018.08.021.  https://www.osti.gov/servlets/purl/1482440.

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@article{osti_1482440,

  title        = {Influence of irradiation temperature on void swelling in NiCoFeCrMn and NiCoFeCrPd},

  author       = {Yang, Tai-ni and Lu, Chenyang and Velisa, Gihan and Jin, Ke and Xiu, Pengyuan and Zhang, Yanwen and Bei, Hongbin and Wang, Lumin},

  abstractNote = {Here, using ion irradiation and transmission electron microscopy, temperature dependent void swelling and dislocation loop evolution in equiatomic NiCoFeCrMn and NiCoFeCrPd high entropy alloys were investigated. Voids were observed in all tested conditions. An order higher of swelling was observed in both HEAs as temperature increased from 420 to 580 °C. Alloying with Pd was found to have a stronger suppression effect on void and dislocation loop growth than alloying with Mn. Possible contributions to the swelling resistance were explored, including localized lattice distortion and higher defect migration barrier in NiCoFeCrPd. Additionally, no phase decomposition was observed in either alloy.},

  doi          = {10.1016/j.scriptamat.2018.08.021},

  journal      = {Scripta Materialia},

  number       = C,

  volume       = 158,

  place        = {United States},

  year         = {2018},

  month        = {8}

}

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DOI: 10.1016/j.scriptamat.2018.08.021

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