The Effect of Rhenium Content on Microstructural Changes and Irradiated Hardening in W-Re Alloy under High-Dose Ion Irradiation
An amount of 100 dpa Si<sup>2+</sup> irradiation was used to study the effect of transmutation rhenium content on irradiated microscopic defects and hardening in W-xRe (x = 0, 1, 3, 5 and 10 wt.%) alloys at 550 °C. The increase in Re content could significantly refine the grain in the W-...
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MDPI AG
2023-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/3/497 |
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| author | Fengfeng Luo Hongtai Luo Qiuxiang Liu Liang Zhou Wenbin Lin Ziyang Xie Liping Guo |
| author_facet | Fengfeng Luo Hongtai Luo Qiuxiang Liu Liang Zhou Wenbin Lin Ziyang Xie Liping Guo |
| author_sort | Fengfeng Luo |
| collection | DOAJ |
| description | An amount of 100 dpa Si<sup>2+</sup> irradiation was used to study the effect of transmutation rhenium content on irradiated microscopic defects and hardening in W-xRe (x = 0, 1, 3, 5 and 10 wt.%) alloys at 550 °C. The increase in Re content could significantly refine the grain in the W-xRe alloys, and no obvious surface topography change could be found after high-dose irradiation via the scanning electron microscope (SEM). The micro defects induced by high-dose irradiation in W and W-3Re alloys were observed using a transmission electron microscope (TEM). Dislocation loops with a size larger than 10 nm could be found in both W and W-3Re alloy, but the distribution of them was different. The distribution of the dislocation loops was more uniform in pure W, while they seemed to be clustered around some locations in W-3Re alloy. Voids (~2.4 nm) were observed in W-3Re alloy, while no void was investigated in W. High-dose irradiation induced obvious hardening with the hardening rate between 75% and 155% in all W-xRe alloys, but W-3Re alloy had the lowest hardening rate (75%). The main reasons might be related to the smallest grain size in W-3Re alloy, which suppressed the formation of defect clusters and induced smaller hardening than that in other samples. |
| first_indexed | 2024-03-11T09:31:05Z |
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| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T09:31:05Z |
| publishDate | 2023-01-01 |
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| series | Nanomaterials |
| spelling | doaj.art-21235bdf8f9d49d28083270b4f9e50032023-11-16T17:35:35ZengMDPI AGNanomaterials2079-49912023-01-0113349710.3390/nano13030497The Effect of Rhenium Content on Microstructural Changes and Irradiated Hardening in W-Re Alloy under High-Dose Ion IrradiationFengfeng Luo0Hongtai Luo1Qiuxiang Liu2Liang Zhou3Wenbin Lin4Ziyang Xie5Liping Guo6Software Engineering Institute of Guangzhou, Guangzhou 510990, ChinaKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Hubei Nuclear Solid Physics Key Laboratory, School of Physics and Technology, Wuhan University, Wuhan 430072, ChinaInstitute of Applied Physics, Jiangxi Academy of Science, Nanchang 330029, ChinaSoftware Engineering Institute of Guangzhou, Guangzhou 510990, ChinaKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Hubei Nuclear Solid Physics Key Laboratory, School of Physics and Technology, Wuhan University, Wuhan 430072, ChinaKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Hubei Nuclear Solid Physics Key Laboratory, School of Physics and Technology, Wuhan University, Wuhan 430072, ChinaKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Hubei Nuclear Solid Physics Key Laboratory, School of Physics and Technology, Wuhan University, Wuhan 430072, ChinaAn amount of 100 dpa Si<sup>2+</sup> irradiation was used to study the effect of transmutation rhenium content on irradiated microscopic defects and hardening in W-xRe (x = 0, 1, 3, 5 and 10 wt.%) alloys at 550 °C. The increase in Re content could significantly refine the grain in the W-xRe alloys, and no obvious surface topography change could be found after high-dose irradiation via the scanning electron microscope (SEM). The micro defects induced by high-dose irradiation in W and W-3Re alloys were observed using a transmission electron microscope (TEM). Dislocation loops with a size larger than 10 nm could be found in both W and W-3Re alloy, but the distribution of them was different. The distribution of the dislocation loops was more uniform in pure W, while they seemed to be clustered around some locations in W-3Re alloy. Voids (~2.4 nm) were observed in W-3Re alloy, while no void was investigated in W. High-dose irradiation induced obvious hardening with the hardening rate between 75% and 155% in all W-xRe alloys, but W-3Re alloy had the lowest hardening rate (75%). The main reasons might be related to the smallest grain size in W-3Re alloy, which suppressed the formation of defect clusters and induced smaller hardening than that in other samples.https://www.mdpi.com/2079-4991/13/3/497W-Re alloyhigh-dose irradiationdislocation loopsvoidsirradiated hardening |
| spellingShingle | Fengfeng Luo Hongtai Luo Qiuxiang Liu Liang Zhou Wenbin Lin Ziyang Xie Liping Guo The Effect of Rhenium Content on Microstructural Changes and Irradiated Hardening in W-Re Alloy under High-Dose Ion Irradiation Nanomaterials W-Re alloy high-dose irradiation dislocation loops voids irradiated hardening |
| title | The Effect of Rhenium Content on Microstructural Changes and Irradiated Hardening in W-Re Alloy under High-Dose Ion Irradiation |
| title_full | The Effect of Rhenium Content on Microstructural Changes and Irradiated Hardening in W-Re Alloy under High-Dose Ion Irradiation |
| title_fullStr | The Effect of Rhenium Content on Microstructural Changes and Irradiated Hardening in W-Re Alloy under High-Dose Ion Irradiation |
| title_full_unstemmed | The Effect of Rhenium Content on Microstructural Changes and Irradiated Hardening in W-Re Alloy under High-Dose Ion Irradiation |
| title_short | The Effect of Rhenium Content on Microstructural Changes and Irradiated Hardening in W-Re Alloy under High-Dose Ion Irradiation |
| title_sort | effect of rhenium content on microstructural changes and irradiated hardening in w re alloy under high dose ion irradiation |
| topic | W-Re alloy high-dose irradiation dislocation loops voids irradiated hardening |
| url | https://www.mdpi.com/2079-4991/13/3/497 |
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