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Phase-Field Modelling of Void Evolution in Binary Alloys Under Irradiation

  • Yong Lu*
  • , Yuhang Yang
  • , Wenjie Li
  • , Dan Sun
  • , Xingjun Liu
  • , Cuiping Wang
  • *Corresponding author for this work
  • College of Materials and Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials
  • Nuclear Power Institute of China

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The formation and growth of voids have significant influence on the dimensional changes of nuclear materials subjected to irradiation. In this paper, we developed a phase-field model to investigate the evolution of voids in binary alloys under irradiation, which includes the process of irradiation-induced defect formation and annihilation. The relationship of alloy composition and defect formation energy was determined. The nucleation and growth of voids for various alloy compositions were simulated to investigate the effect of solute composition on the void growth kinetics. Our simulation results indicate that, the composition of matrix phase and its influence on the formation energy of vacancy are essential for the growth kinetics and void distribution during irradiation. As an example, the void nucleation and growth in U-Zr alloys are also studied and consistence between the present results and experimental observations were obtained.

Original languageEnglish
Title of host publicationProceedings of the 2023 Water Reactor Fuel Performance Meeting - WRFPM 2023
EditorsJianqiao Liu, Yongjun Jiao
PublisherSpringer Science and Business Media Deutschland GmbH
Pages280-292
Number of pages13
ISBN (Print)9789819971565
DOIs
StatePublished - 2024
Externally publishedYes
EventInternational Conference on Water Reactor Fuel Performance Meeting, WRFPM 2023 - Xi’an, China
Duration: 17 Jul 202321 Jul 2023

Publication series

NameSpringer Proceedings in Physics
Volume299
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

ConferenceInternational Conference on Water Reactor Fuel Performance Meeting, WRFPM 2023
Country/TerritoryChina
CityXi’an
Period17/07/2321/07/23

Keywords

  • Binary alloy
  • Irradiation
  • Phase-field
  • U-Zr
  • Voids

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