Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations
Abstract
The 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. Finally, compared to another HEA NiCoFeCrMn, NiCoFeCrPd has a smaller loop size and higher loop density due to the stronger lattice distortion.
- Authors:
-
[1];
[2];
[2];
[2];
[3];
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences, and Dept. of Materials Science and Engineering
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1482443
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Materials Research Letters
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 10; Journal ID: ISSN 2166-3831
- Publisher:
- Taylor and Francis
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; High-entropy alloy; ion irradiation; void swelling; dislocation loops
Citation Formats
Lu, Chenyang, Yang, Taini, Jin, Ke, Velisa, Gihan, Xiu, Pengyuan, Song, Miao, Peng, Qing, Gao, Fei, Zhang, Yanwen, Bei, Hongbin, Weber, William J., and Wang, Lumin. Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations. United States: N. p., 2018.
Web. doi:10.1080/21663831.2018.1504136.
Lu, Chenyang, Yang, Taini, Jin, Ke, Velisa, Gihan, Xiu, Pengyuan, Song, Miao, Peng, Qing, Gao, Fei, Zhang, Yanwen, Bei, Hongbin, Weber, William J., & Wang, Lumin. Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations. United States. https://doi.org/10.1080/21663831.2018.1504136
Lu, Chenyang, Yang, Taini, Jin, Ke, Velisa, Gihan, Xiu, Pengyuan, Song, Miao, Peng, Qing, Gao, Fei, Zhang, Yanwen, Bei, Hongbin, Weber, William J., and Wang, Lumin. Wed .
"Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations". United States. https://doi.org/10.1080/21663831.2018.1504136. https://www.osti.gov/servlets/purl/1482443.
@article{osti_1482443,
title = {Enhanced void swelling in NiCoFeCrPd high-entropy alloy by indentation-induced dislocations},
author = {Lu, Chenyang and Yang, Taini and Jin, Ke and Velisa, Gihan and Xiu, Pengyuan and Song, Miao and Peng, Qing and Gao, Fei and Zhang, Yanwen and Bei, Hongbin and Weber, William J. and Wang, Lumin},
abstractNote = {The 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. Finally, compared to another HEA NiCoFeCrMn, NiCoFeCrPd has a smaller loop size and higher loop density due to the stronger lattice distortion.},
doi = {10.1080/21663831.2018.1504136},
journal = {Materials Research Letters},
number = 10,
volume = 6,
place = {United States},
year = {Wed Aug 08 00:00:00 EDT 2018},
month = {Wed Aug 08 00:00:00 EDT 2018}
}
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Works referencing / citing this record:
Thermal Stability and Mechanical Properties of Low-Activation Single-Phase Ti-V-Ta Medium Entropy Alloys
journal, August 2019
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Lattice Distortion and Phase Stability of Pd-Doped NiCoFeCr Solid-Solution Alloys
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