Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy
- 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 Al0.1CoCrFeNi 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.
- Research Organization:
- Oak Ridge National Laboratory (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
Web of Science
Effects of Al and Ti Additions on Irradiation Behavior of FeMnNiCr Multi-Principal-Element Alloy
|
journal | October 2019 |
Vacancy and interstitial atom evolution with the separation of the nanoscale phase in Fe–Cr alloys: phase-field simulations
|
journal | January 2020 |
Irradiation responses and defect behavior of single-phase concentrated solid solution alloys
|
journal | September 2018 |
Enhanced surface bombardment resistance of the CoNiCrFeMn high entropy alloy under extreme irradiation flux
|
journal | October 2019 |
Evaluation of Radiation Response in CoCrFeCuNi High-Entropy Alloys
|
journal | October 2018 |
Similar Records
Irradiation effects on Al0.3CoCrFeNi and CoCrMnFeNi high-entropy alloys, and 316H stainless steel at 500 °C
Phase transformations of Al-bearing high-entropy alloys AlxCoCrFeNi (x = 0, 0.1, 0.3, 0.75, 1.5) at high pressure