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

Yanwen Zhang, Xing Wang, Yuri N. Osetsky, Yang Tong, Robert Harrison, Stephen E. Donnelly, Di Chen, Yongqiang Wang, Hongbin Bei, Brian C. Sales, Karren L. More, Pengyuan Xiu, Lumin Wang, William J. Weber

Research output: Contribution to journalArticle

Abstract

Elemental specific chemical complexity is known to play a critical 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 discuss 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 demonstrated 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.
Original languageEnglish
Pages (from-to)519-529
Number of pages11
JournalActa Materialia
Volume181
Early online date11 Oct 2019
DOIs
Publication statusPublished - 1 Dec 2019

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Bubble formation
Helium
Swelling
Solid solutions
Electrons
Transition metals
Irradiation
Radiation
Defects
Microstructure
Ion bombardment
Alloying
Ion implantation
Energy dissipation
Tuning
Ions
Atoms

Cite this

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. In: Acta Materialia. 2019 ; Vol. 181. pp. 519-529.
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abstract = "Elemental specific chemical complexity is known to play a critical 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 discuss 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 demonstrated 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.",
keywords = "Concentrated solid-solution alloys, Defect dynamics, Microstructure evolution, Ion irradiation, Cavity formation",
author = "Yanwen Zhang and Xing Wang and Osetsky, {Yuri N.} and Yang Tong and Robert Harrison and Donnelly, {Stephen E.} and Di Chen and Yongqiang Wang and Hongbin Bei and Sales, {Brian C.} and More, {Karren L.} and Pengyuan Xiu and Lumin Wang and Weber, {William J.}",
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Zhang, Y, Wang, X, Osetsky, YN, Tong, Y, Harrison, R, Donnelly, SE, Chen, D, Wang, Y, Bei, H, Sales, BC, More, KL, Xiu, P, Wang, L & Weber, WJ 2019, 'Effects of 3d electron configurations on helium bubble formation and void swelling in concentrated solid-solution alloys', Acta Materialia, vol. 181, pp. 519-529. https://doi.org/10.1016/j.actamat.2019.10.013

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

In: Acta Materialia, Vol. 181, 01.12.2019, p. 519-529.

Research output: Contribution to journalArticle

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T1 - Effects of 3d electron configurations on helium bubble formation and void swelling in concentrated solid-solution alloys

AU - Zhang, Yanwen

AU - Wang, Xing

AU - Osetsky, Yuri N.

AU - Tong, Yang

AU - Harrison, Robert

AU - Donnelly, Stephen E.

AU - Chen, Di

AU - Wang, Yongqiang

AU - Bei, Hongbin

AU - Sales, Brian C.

AU - More, Karren L.

AU - Xiu, Pengyuan

AU - Wang, Lumin

AU - Weber, William J.

PY - 2019/12/1

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N2 - Elemental specific chemical complexity is known to play a critical 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 discuss 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 demonstrated 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.

AB - Elemental specific chemical complexity is known to play a critical 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 discuss 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 demonstrated 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.

KW - Concentrated solid-solution alloys

KW - Defect dynamics

KW - Microstructure evolution

KW - Ion irradiation

KW - Cavity formation

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