Role of tantalum concentration on the high dose self-ion irradiation behavior of nanocrystalline binary alloys

S. Srinivasan; B. C. Hornbuckle; M. Chancey; K. A. Darling; Y. Q. Wang; K. Solanki

doi:https://doi.org/10.1016/j.scriptamat.2022.115100

Role of tantalum concentration on the high dose self-ion irradiation behavior of nanocrystalline binary alloys

S. Srinivasan, B. C. Hornbuckle, M. Chancey, K. A. Darling, Y. Q. Wang, K. Solanki

Engineering, Ira A. Fulton Schools of (IAFSE)

Research output: Contribution to journal › Article › peer-review

Abstract

In this work, the self-ion irradiation behavior of nanocrystalline copper-tantalum alloys was investigated. In particular, the microstructural evolution of Cu-3at.%Ta and Cu-10at.%Ta was evaluated under the fluence of 2 × 10¹⁷ ions/cm² of 4 MeV Cu-ions at different temperatures. Results revealed that despite the ability of Cu-10Ta to reprecipitate new nanoclusters and thereby increase the sink density by ∼17%, it undergoes significant microstructural evolution. On the other hand, Cu-3Ta exhibits a relatively more stable microstructural response and 3.5 times less swelling over the same conditions. This result illustrates the premise that irradiation and deformation may be coupled to stabilize/rejuvenate Ta-nanoclusters in extreme-environments.

Original language	English (US)
Article number	115100
Journal	Scripta Materialia
Volume	223
DOIs	https://doi.org/10.1016/j.scriptamat.2022.115100
State	Published - Jan 15 2023

Keywords

Grain growth
Irradiation
Kinetic stability
Nanocrystalline

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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https://doi.org/10.1016/j.scriptamat.2022.115100

Cite this

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title = "Role of tantalum concentration on the high dose self-ion irradiation behavior of nanocrystalline binary alloys",

abstract = "In this work, the self-ion irradiation behavior of nanocrystalline copper-tantalum alloys was investigated. In particular, the microstructural evolution of Cu-3at.%Ta and Cu-10at.%Ta was evaluated under the fluence of 2 × 1017 ions/cm2 of 4 MeV Cu-ions at different temperatures. Results revealed that despite the ability of Cu-10Ta to reprecipitate new nanoclusters and thereby increase the sink density by ∼17%, it undergoes significant microstructural evolution. On the other hand, Cu-3Ta exhibits a relatively more stable microstructural response and 3.5 times less swelling over the same conditions. This result illustrates the premise that irradiation and deformation may be coupled to stabilize/rejuvenate Ta-nanoclusters in extreme-environments.",

keywords = "Grain growth, Irradiation, Kinetic stability, Nanocrystalline",

author = "S. Srinivasan and Hornbuckle, {B. C.} and M. Chancey and Darling, {K. A.} and Wang, {Y. Q.} and K. Solanki",

note = "Funding Information: S.S. and K. S. acknowledge the use of facilities within the LeRoy Eyring Center for Solid State Science at Arizona State University. This work was supported by the US Army Research Laboratory under contract W911NF-15-2-0038 and the National Science Foundation under grants No. 1663287 and 1810431 . This work was performed, in part, at the Center for Integrated Nanotechnologies , an Office of Science User Facility operated by the U.S. Department of Energy (DOE) Office of Science . Los Alamos National Laboratory , an affirmative action-equal opportunity employer, is managed by Triad National Security , LLC for the U.S. Department of Energy's NNSA , under contract 89233218CNA000001 . Publisher Copyright: {\textcopyright} 2022 Acta Materialia Inc.",

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doi = "https://doi.org/10.1016/j.scriptamat.2022.115100",

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T1 - Role of tantalum concentration on the high dose self-ion irradiation behavior of nanocrystalline binary alloys

AU - Srinivasan, S.

AU - Hornbuckle, B. C.

AU - Chancey, M.

AU - Darling, K. A.

AU - Wang, Y. Q.

AU - Solanki, K.

N1 - Funding Information: S.S. and K. S. acknowledge the use of facilities within the LeRoy Eyring Center for Solid State Science at Arizona State University. This work was supported by the US Army Research Laboratory under contract W911NF-15-2-0038 and the National Science Foundation under grants No. 1663287 and 1810431 . This work was performed, in part, at the Center for Integrated Nanotechnologies , an Office of Science User Facility operated by the U.S. Department of Energy (DOE) Office of Science . Los Alamos National Laboratory , an affirmative action-equal opportunity employer, is managed by Triad National Security , LLC for the U.S. Department of Energy's NNSA , under contract 89233218CNA000001 . Publisher Copyright: © 2022 Acta Materialia Inc.

PY - 2023/1/15

Y1 - 2023/1/15

N2 - In this work, the self-ion irradiation behavior of nanocrystalline copper-tantalum alloys was investigated. In particular, the microstructural evolution of Cu-3at.%Ta and Cu-10at.%Ta was evaluated under the fluence of 2 × 1017 ions/cm2 of 4 MeV Cu-ions at different temperatures. Results revealed that despite the ability of Cu-10Ta to reprecipitate new nanoclusters and thereby increase the sink density by ∼17%, it undergoes significant microstructural evolution. On the other hand, Cu-3Ta exhibits a relatively more stable microstructural response and 3.5 times less swelling over the same conditions. This result illustrates the premise that irradiation and deformation may be coupled to stabilize/rejuvenate Ta-nanoclusters in extreme-environments.

AB - In this work, the self-ion irradiation behavior of nanocrystalline copper-tantalum alloys was investigated. In particular, the microstructural evolution of Cu-3at.%Ta and Cu-10at.%Ta was evaluated under the fluence of 2 × 1017 ions/cm2 of 4 MeV Cu-ions at different temperatures. Results revealed that despite the ability of Cu-10Ta to reprecipitate new nanoclusters and thereby increase the sink density by ∼17%, it undergoes significant microstructural evolution. On the other hand, Cu-3Ta exhibits a relatively more stable microstructural response and 3.5 times less swelling over the same conditions. This result illustrates the premise that irradiation and deformation may be coupled to stabilize/rejuvenate Ta-nanoclusters in extreme-environments.

KW - Grain growth

KW - Irradiation

KW - Kinetic stability

KW - Nanocrystalline

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Role of tantalum concentration on the high dose self-ion irradiation behavior of nanocrystalline binary alloys

Abstract

Keywords

ASJC Scopus subject areas

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