Mechanical and microstructural response of the Al0.5CoCrFeNi high entropy alloy to Si and Ni ion irradiation
Name
1-s2.0-S2352179120300880-main.pdf
Description
Published version
Size
2.7 MB
Format
Adobe PDF
Checksum (MD5)
f9e7351bea588a6ac62cd1b0c6441cad
Author(s)
Aizenshtein, M
Ungarish, Z
Woller, KB
Hayun, S
Short, MP
Date Issued
2020
Journal
Nuclear Materials and Energy
Publisher
Elsevier BV
Version
Final published version
Abstract
© 2020 The Authors The nearly infinite compositional design space of high entropy alloys (HEAs) presents many opportunities to improve performance in extreme environments, particularly for nuclear reactors. The ability of some HEAs to resist high amounts of radiation damage, while well documented, has not yet been fully exploited. We studied the irradiation effect of different ions (Si and Ni) on the microstructure and mechanical properties of the Al0.5CoCrFeNi alloy at its equilibrium state, and of the individual response of each phase to irradiation. The results show a stronger effect of Si ions and differences in response of the ductile FCC (A1) and brittle ordered BCC (B2) phases towards irradiation. This finding highlights the need to further probe unexplored compositional spaces in HEAs, as further optimization is likely to yield further compositional and microstructural stability with practical applications.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.NME.2020.100813
