Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy

Yang, Tengfei; Xia, Songqin; Guo, Wei; Hu, Rong; Poplawsky, Jonathan D.; Sha, Gang; Fang, Yuan; Yan, Zhanfeng; Wang, Chenxu; Li, Congyi; Zhang, Yong; Zinkle, Steven J.; Wang, Yugang

doi:10.1016/j.scriptamat.2017.09.025

Title: Effects of temperature on the irradiation responses of Al_0.1CoCrFeNi high entropy alloy

Journal Article · Fri Sep 29 00:00:00 EDT 2017 · Scripta Materialia

DOI:https://doi.org/10.1016/j.scriptamat.2017.09.025· OSTI ID:1399376

Yang, Tengfei ^[1]; Xia, Songqin ^[2]; Guo, Wei ^[2]; Hu, Rong ^[3]; Poplawsky, Jonathan D. ^[2]; Sha, Gang ^[3]; Fang, Yuan ^[4];

^[4]; Wang, Chenxu ^[4]; Li, Congyi ^[5];

^[2]; Zinkle, Steven J. ^[5]; Wang, Yugang ^[4]

Peking Univ., Beijing (China). Center for Applied Physics and Technology; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Nuclear Engineering
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences
Nanjing Univ. (China). Herbert Gleiter Inst. of Nanoscience
Peking Univ., Beijing (China). Center for Applied Physics and Technology
Univ. of Tennessee, Knoxville, TN (United States). Dept. of Nuclear Engineering

Structural damage and chemical segregation in Al_0.1CoCrFeNi high entropy alloy irradiated at elevated temperatures are studied using transmission electron microscopy (TEM) and atom probe tomography (APT). Irradiation-induced defects include dislocation loops, long dislocations and stacking-fault tetrahedra, but no voids can be observed. Furthermore, as irradiation temperature increases, defect density is decreased but defect size is increased, which is induced by increasing defect mobility. Finally, APT characterization reveals that ion irradiation at elevated temperatures can induce an enrichment of Ni and Co as well as a depletion of Fe and Cr at defect clusters, mainly including dislocation loops and long dislocations.

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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC05-00OR22725; SC0006661; 2015GB113000

OSTI ID:: 1399376

Alternate ID(s):: OSTI ID: 1549280

Journal Information:: Scripta Materialia, Vol. 144, Issue C; ISSN 1359-6462

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 72 works

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Effects of Al and Ti Additions on Irradiation Behavior of FeMnNiCr Multi-Principal-Element Alloy Hoffman, Andrew; He, Li; Luebbe, Matthew JOM, Vol. 72, Issue 1 https://doi.org/10.1007/s11837-019-03871-4	journal	October 2019
Vacancy and interstitial atom evolution with the separation of the nanoscale phase in Fe–Cr alloys: phase-field simulations Yan, Zhengwei; Shi, Shujing; Li, Yongsheng Physical Chemistry Chemical Physics, Vol. 22, Issue 6 https://doi.org/10.1039/c9cp06247e	journal	January 2020
Irradiation responses and defect behavior of single-phase concentrated solid solution alloys Yang, Tengfei; Li, Congyi; Zinkle, Steven J. Journal of Materials Research, Vol. 33, Issue 19 https://doi.org/10.1557/jmr.2018.285	journal	September 2018
Enhanced surface bombardment resistance of the CoNiCrFeMn high entropy alloy under extreme irradiation flux Li, Yangen; Li, Rui; Peng, Qing Nanotechnology, Vol. 31, Issue 2 https://doi.org/10.1088/1361-6528/ab473f	journal	October 2019
Evaluation of Radiation Response in CoCrFeCuNi High-Entropy Alloys Wang, Yang; Zhang, Kun; Feng, Yihui Entropy, Vol. 20, Issue 11 https://doi.org/10.3390/e20110835	journal	October 2018

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Title: Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy

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Title: Effects of temperature on the irradiation responses of Al_0.1CoCrFeNi high entropy alloy