Microstructural changes in He-irradiated V-Cr-Ti alloys with low Ti addition at 700 °C
V-Cr-Ti alloys with reduced Ti contents are expected to be good candidates as recyclable structural materials for fusion reactors. Herein, He irradiation was applied to V-4Cr-xTi (x = 0 to 4) alloys to investigate the additional effect of Ti and gas interstitial impurities on their microstructural e...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Nuclear Materials and Energy |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179124000279 |
| _version_ | 1797262896675160064 |
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| author | Yichen Zou Ken-ichi Fukumoto Ryoya Ishigami Takuya Nagasaka |
| author_facet | Yichen Zou Ken-ichi Fukumoto Ryoya Ishigami Takuya Nagasaka |
| author_sort | Yichen Zou |
| collection | DOAJ |
| description | V-Cr-Ti alloys with reduced Ti contents are expected to be good candidates as recyclable structural materials for fusion reactors. Herein, He irradiation was applied to V-4Cr-xTi (x = 0 to 4) alloys to investigate the additional effect of Ti and gas interstitial impurities on their microstructural evolution and irradiation hardening. Following He irradiation of the specimens at 700 °C with a maximum damage depth of 0.5 dpa, transmission electron microscopy and nanoindentation hardness tests were conducted. The microstructural evolution of the titanium-oxycarbonitride (Ti(CON)) precipitates formed during He ion irradiation was observed. The behavior of irradiation hardening is explained by the formation process of Ti(CON) precipitates and the magnitude of irradiation hardening depends on the amount of gas interstitial impurities that contribute to precipitate formation. |
| first_indexed | 2024-03-08T00:22:32Z |
| format | Article |
| id | doaj.art-0775153280c842d7b591e27fc127a236 |
| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-04-25T00:04:24Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj.art-0775153280c842d7b591e27fc127a2362024-03-14T06:14:54ZengElsevierNuclear Materials and Energy2352-17912024-03-0138101605Microstructural changes in He-irradiated V-Cr-Ti alloys with low Ti addition at 700 °CYichen Zou0Ken-ichi Fukumoto1Ryoya Ishigami2Takuya Nagasaka3Research Institute of Nuclear Engineering, University of Fukui, 914-0055, Tsuruga, JapanResearch Institute of Nuclear Engineering, University of Fukui, 914-0055, Tsuruga, Japan; Corresponding author.The Wakasa Wan Energy Research Center, Tsuruga, JapanNational Institute for Fusion Science, Toki, JapanV-Cr-Ti alloys with reduced Ti contents are expected to be good candidates as recyclable structural materials for fusion reactors. Herein, He irradiation was applied to V-4Cr-xTi (x = 0 to 4) alloys to investigate the additional effect of Ti and gas interstitial impurities on their microstructural evolution and irradiation hardening. Following He irradiation of the specimens at 700 °C with a maximum damage depth of 0.5 dpa, transmission electron microscopy and nanoindentation hardness tests were conducted. The microstructural evolution of the titanium-oxycarbonitride (Ti(CON)) precipitates formed during He ion irradiation was observed. The behavior of irradiation hardening is explained by the formation process of Ti(CON) precipitates and the magnitude of irradiation hardening depends on the amount of gas interstitial impurities that contribute to precipitate formation.http://www.sciencedirect.com/science/article/pii/S2352179124000279Vanadium alloyFocused ion beamIrradiation hardeningTrans-mission electron microscopyTi(CON) precipitateHe ion irradiation |
| spellingShingle | Yichen Zou Ken-ichi Fukumoto Ryoya Ishigami Takuya Nagasaka Microstructural changes in He-irradiated V-Cr-Ti alloys with low Ti addition at 700 °C Nuclear Materials and Energy Vanadium alloy Focused ion beam Irradiation hardening Trans-mission electron microscopy Ti(CON) precipitate He ion irradiation |
| title | Microstructural changes in He-irradiated V-Cr-Ti alloys with low Ti addition at 700 °C |
| title_full | Microstructural changes in He-irradiated V-Cr-Ti alloys with low Ti addition at 700 °C |
| title_fullStr | Microstructural changes in He-irradiated V-Cr-Ti alloys with low Ti addition at 700 °C |
| title_full_unstemmed | Microstructural changes in He-irradiated V-Cr-Ti alloys with low Ti addition at 700 °C |
| title_short | Microstructural changes in He-irradiated V-Cr-Ti alloys with low Ti addition at 700 °C |
| title_sort | microstructural changes in he irradiated v cr ti alloys with low ti addition at 700 °c |
| topic | Vanadium alloy Focused ion beam Irradiation hardening Trans-mission electron microscopy Ti(CON) precipitate He ion irradiation |
| url | http://www.sciencedirect.com/science/article/pii/S2352179124000279 |
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