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Title: Effects of 3d electron configurations on helium bubble formation and void swelling in concentrated solid-solution alloys

Abstract

Currently, elemental specific chemical complexity is known to play a vital role in microstructure development in single-phase concentrated solid-solution alloys (SP-CSAs), including both He bubble formation and irradiation-induced void swelling. While cavity formation and evolution under ion irradiation at elevated temperature are complex nonequilibrium processes, chemical effects are revealed at the level of electrons and atoms herein in a simplified picture, using Ni and a special set of Ni-based SP-CSAs composed of 3d transition metals as model alloys. Based on Ni and the model alloys with minimized variables (e.g., atomic mass, size, and lattice structure), we report on the effects of chemically-biased energy dissipation, defect energetics, sluggish diffusion, and atomic transport on cavity formation and evolution under both self-ion Ni irradiation and He implantation. The observed difference in microstructure evolution is attributed to the effects of d electron interactions in their integrated ability to dissipate radiation energy. The exhibited impact of alloying 3d transition metals with larger differences in the outermost electron counts suggests a simple design strategy for tuning defect properties to improve radiation tolerance in structural alloys.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [3];  [3];  [4]; ORCiD logo [4];  [2];  [2];  [2]; ORCiD logo [5];  [5];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. of Huddersfield (United Kingdom)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Univ. of Michigan, Ann Arbor, MI (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE
OSTI Identifier:
1571608
Alternate Identifier(s):
OSTI ID: 1571711
Report Number(s):
LA-UR-19-30365
Journal ID: ISSN 1359-6454
Grant/Contract Number:  
89233218CNA000001; AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Acta Materialia
Additional Journal Information:
Journal Volume: 181; Journal Issue: C; Journal ID: ISSN 1359-6454
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Concentrated solid-solution alloys; Defect dynamics; Microstructure evolution; Ion irradiation; Cavity formation

Citation Formats

Zhang, Yanwen, Wang, Xing, Osetsky, Yuri N., Tong, Yang, Harrison, Robert, Donnelly, Stephen E., Chen, Di, Wang, Yongqiang, Bei, Hongbin, Sales, Brian C., More, Karren L., Xiu, Pengyuan, Wang, Lumin, and Weber, William J. Effects of 3d electron configurations on helium bubble formation and void swelling in concentrated solid-solution alloys. United States: N. p., 2019. Web. doi:10.1016/j.actamat.2019.10.013.
Zhang, Yanwen, Wang, Xing, Osetsky, Yuri N., Tong, Yang, Harrison, Robert, Donnelly, Stephen E., Chen, Di, Wang, Yongqiang, Bei, Hongbin, Sales, Brian C., More, Karren L., Xiu, Pengyuan, Wang, Lumin, & Weber, William J. Effects of 3d electron configurations on helium bubble formation and void swelling in concentrated solid-solution alloys. United States. doi:10.1016/j.actamat.2019.10.013.
Zhang, Yanwen, Wang, Xing, Osetsky, Yuri N., Tong, Yang, Harrison, Robert, Donnelly, Stephen E., Chen, Di, Wang, Yongqiang, Bei, Hongbin, Sales, Brian C., More, Karren L., Xiu, Pengyuan, Wang, Lumin, and Weber, William J. Fri . "Effects of 3d electron configurations on helium bubble formation and void swelling in concentrated solid-solution alloys". United States. doi:10.1016/j.actamat.2019.10.013.
@article{osti_1571608,
title = {Effects of 3d electron configurations on helium bubble formation and void swelling in concentrated solid-solution alloys},
author = {Zhang, Yanwen and Wang, Xing and Osetsky, Yuri N. and Tong, Yang and Harrison, Robert and Donnelly, Stephen E. and Chen, Di and Wang, Yongqiang and Bei, Hongbin and Sales, Brian C. and More, Karren L. and Xiu, Pengyuan and Wang, Lumin and Weber, William J.},
abstractNote = {Currently, elemental specific chemical complexity is known to play a vital role in microstructure development in single-phase concentrated solid-solution alloys (SP-CSAs), including both He bubble formation and irradiation-induced void swelling. While cavity formation and evolution under ion irradiation at elevated temperature are complex nonequilibrium processes, chemical effects are revealed at the level of electrons and atoms herein in a simplified picture, using Ni and a special set of Ni-based SP-CSAs composed of 3d transition metals as model alloys. Based on Ni and the model alloys with minimized variables (e.g., atomic mass, size, and lattice structure), we report on the effects of chemically-biased energy dissipation, defect energetics, sluggish diffusion, and atomic transport on cavity formation and evolution under both self-ion Ni irradiation and He implantation. The observed difference in microstructure evolution is attributed to the effects of d electron interactions in their integrated ability to dissipate radiation energy. The exhibited impact of alloying 3d transition metals with larger differences in the outermost electron counts suggests a simple design strategy for tuning defect properties to improve radiation tolerance in structural alloys.},
doi = {10.1016/j.actamat.2019.10.013},
journal = {Acta Materialia},
number = C,
volume = 181,
place = {United States},
year = {2019},
month = {10}
}

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This content will become publicly available on October 11, 2020
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