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Title: The effect of alloying nickel with iron on the supersonic ballistic stage of high energy displacement cascades

Abstract

Previous experimental and theoretical studies suggest that the production of extended defect structures by collision cascades is inhibited in equiatomic NiFe, in comparison to pure Ni. It is also known that the production of such extend defect structures results from the formation of subcascades by high-energy recoils and their subsequent interaction. A detailed analysis of the ballistics of 40 keV cascades in Ni and NiFe is performed to identify the formation of such subcascades and to assess their spatial distribution. It is found that subcascades in Ni and NiFe are created with nearly identical energies and distributed similarly in space. This suggests that the differences in production of extended defect structures is not related to processes taking place in the ballistic phase of the collision cascade. Lastly, these results can be generalized to other, more chemically complex, concentrated alloys where the elements have similar atomic numbers, such as many high-entropy alloys.

Authors:
ORCiD logo [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1326504
Alternate Identifier(s):
OSTI ID: 1460445
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Acta Materialia
Additional Journal Information:
Journal Volume: 116; Journal Issue: C; Journal ID: ISSN 1359-6454
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; radiation damage; nickel; nickel-iron; molecular dynamics; high-entropy alloys

Citation Formats

Béland, Laurent Karim, Osetsky, Yuri N., and Stoller, Roger E.. The effect of alloying nickel with iron on the supersonic ballistic stage of high energy displacement cascades. United States: N. p., 2016. Web. doi:10.1016/j.actamat.2016.06.031.
Béland, Laurent Karim, Osetsky, Yuri N., & Stoller, Roger E.. The effect of alloying nickel with iron on the supersonic ballistic stage of high energy displacement cascades. United States. doi:10.1016/j.actamat.2016.06.031.
Béland, Laurent Karim, Osetsky, Yuri N., and Stoller, Roger E.. Thu . "The effect of alloying nickel with iron on the supersonic ballistic stage of high energy displacement cascades". United States. doi:10.1016/j.actamat.2016.06.031. https://www.osti.gov/servlets/purl/1326504.
@article{osti_1326504,
title = {The effect of alloying nickel with iron on the supersonic ballistic stage of high energy displacement cascades},
author = {Béland, Laurent Karim and Osetsky, Yuri N. and Stoller, Roger E.},
abstractNote = {Previous experimental and theoretical studies suggest that the production of extended defect structures by collision cascades is inhibited in equiatomic NiFe, in comparison to pure Ni. It is also known that the production of such extend defect structures results from the formation of subcascades by high-energy recoils and their subsequent interaction. A detailed analysis of the ballistics of 40 keV cascades in Ni and NiFe is performed to identify the formation of such subcascades and to assess their spatial distribution. It is found that subcascades in Ni and NiFe are created with nearly identical energies and distributed similarly in space. This suggests that the differences in production of extended defect structures is not related to processes taking place in the ballistic phase of the collision cascade. Lastly, these results can be generalized to other, more chemically complex, concentrated alloys where the elements have similar atomic numbers, such as many high-entropy alloys.},
doi = {10.1016/j.actamat.2016.06.031},
journal = {Acta Materialia},
number = C,
volume = 116,
place = {United States},
year = {Thu Jun 23 00:00:00 EDT 2016},
month = {Thu Jun 23 00:00:00 EDT 2016}
}

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Cited by: 4 works
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