Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations

Chenyang Lu; Taini Yang; Ke Jin; Gihan Velisa; Pengyuan Xiu; Miao Song; Qing Peng; Fei Gao; Yanwen Zhang; Hongbin Bei; William J. Weber; Lumin Wang

doi:10.1080/21663831.2018.1504136

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Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations

Original Report | 更新时间：2026-08-19

- Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations
- Materials Research Letters Vol. 6, Issue 10, Pages: 584-591(2018)
- 作者机构：
  
  1. Department of Nuclear Engineering and Radiological Sciences University of Michigan Ann Arbor
  2. Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge
  3. Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge TN USA
  4. Department of Materials Science and Engineering University of Tennessee Knoxville
  5. Department of Nuclear Engineering and Radiological Sciences University of Michigan Ann Arbor MI USA
  6. Department of Materials Science and Engineering University of Michigan Ann Arbor
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2018.1504136
  CLC：
- Online First：08 August 2018，
  
  Published：2018
- 稿件说明：
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Chenyang Lu, Taini Yang, Ke Jin, et al. Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations[J]. Materials Research Letters, 2018, 6(10): 584-591.
DOI：

Chenyang Lu, Taini Yang, Ke Jin, et al. Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations[J]. Materials Research Letters, 2018, 6(10): 584-591. DOI： 10.1080/21663831.2018.1504136.

摘要

Abstract

BSTRACTThe role of dislocations on ion irradiation-induced void formation is studied in a high-entropy alloy (HEA) NiCoFeCrPd. Despite previous observations that show high-entropy alloys are swelling resistant due to a high defect recombination rate

the swelling is enhanced with increasing density of pre-existing dislocations at low strain levels that shortened transient duration before the onset of void swelling. Under certain irradiation conditions

a high density of dislocations may carry the material closer to the sink-dominated regime. Compared to another HEA NiCoFeCrMn

NiCoFeCrPd has a smaller loop size and higher loop density due to the stronger lattice distortion.

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