Investigation of the Y Effect on the Microstructure Response and Radiation Hardening of PM V-4Cr-4Ti Alloys after Irradiation with D Ions
In the current work, an analysis of the effects of Y on the radiation hardening and microstructure response of a V-4Cr-4Ti alloy has been conducted after 30 keV D ion irradiation at room temperature using transmission electron microscopy (TEM) and nanoindentation. The results show that the formation...
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MDPI AG
2023-03-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/3/541 |
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| author | Yifan Zhang Xiaoyuan Sun Bing Ma Jing Wang Laima Luo Yucheng Wu |
| author_facet | Yifan Zhang Xiaoyuan Sun Bing Ma Jing Wang Laima Luo Yucheng Wu |
| author_sort | Yifan Zhang |
| collection | DOAJ |
| description | In the current work, an analysis of the effects of Y on the radiation hardening and microstructure response of a V-4Cr-4Ti alloy has been conducted after 30 keV D ion irradiation at room temperature using transmission electron microscopy (TEM) and nanoindentation. The results show that the formation of large Y<sub>2</sub>O<sub>3</sub> and small Y<sub>2</sub>V<sub>2</sub>O<sub>7</sub> nanoparticles was confirmed, indicating that the addition of Y reduces the amount of dissolved oxygen. The addition of Y has been shown to affect the radiation-induced dislocation loops, radiation hardening, and Ti-rich segregation of the V-4Cr-4Ti alloy. With the addition of Y, the mean size of the radiation-induced dislocation loop decreased, which may result from the strong sink strength of the nanoparticle/matrix interface, interactions between Y atoms and SIA clusters, and the strong binding energy of vacancy–oxygen pairs. Some particles with core–shell structures were observed after ion irradiation, where Ti-rich segregations at the nanoparticle/matrix interface were confirmed. These results indicate that Y might promote abnormal segregation. Possible causes for this include the lower interface energy at the particle/matrix interface and the interaction between oxygen and solute atoms. |
| first_indexed | 2024-03-11T06:10:21Z |
| format | Article |
| id | doaj.art-8039b0ba935544ef95201d1552755bc9 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T06:10:21Z |
| publishDate | 2023-03-01 |
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| record_format | Article |
| series | Metals |
| spelling | doaj.art-8039b0ba935544ef95201d1552755bc92023-11-17T12:39:11ZengMDPI AGMetals2075-47012023-03-0113354110.3390/met13030541Investigation of the Y Effect on the Microstructure Response and Radiation Hardening of PM V-4Cr-4Ti Alloys after Irradiation with D IonsYifan Zhang0Xiaoyuan Sun1Bing Ma2Jing Wang3Laima Luo4Yucheng Wu5School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, ChinaIn the current work, an analysis of the effects of Y on the radiation hardening and microstructure response of a V-4Cr-4Ti alloy has been conducted after 30 keV D ion irradiation at room temperature using transmission electron microscopy (TEM) and nanoindentation. The results show that the formation of large Y<sub>2</sub>O<sub>3</sub> and small Y<sub>2</sub>V<sub>2</sub>O<sub>7</sub> nanoparticles was confirmed, indicating that the addition of Y reduces the amount of dissolved oxygen. The addition of Y has been shown to affect the radiation-induced dislocation loops, radiation hardening, and Ti-rich segregation of the V-4Cr-4Ti alloy. With the addition of Y, the mean size of the radiation-induced dislocation loop decreased, which may result from the strong sink strength of the nanoparticle/matrix interface, interactions between Y atoms and SIA clusters, and the strong binding energy of vacancy–oxygen pairs. Some particles with core–shell structures were observed after ion irradiation, where Ti-rich segregations at the nanoparticle/matrix interface were confirmed. These results indicate that Y might promote abnormal segregation. Possible causes for this include the lower interface energy at the particle/matrix interface and the interaction between oxygen and solute atoms.https://www.mdpi.com/2075-4701/13/3/541ion irradiationvanadium alloypowder metallurgyyttriumsegregation |
| spellingShingle | Yifan Zhang Xiaoyuan Sun Bing Ma Jing Wang Laima Luo Yucheng Wu Investigation of the Y Effect on the Microstructure Response and Radiation Hardening of PM V-4Cr-4Ti Alloys after Irradiation with D Ions Metals ion irradiation vanadium alloy powder metallurgy yttrium segregation |
| title | Investigation of the Y Effect on the Microstructure Response and Radiation Hardening of PM V-4Cr-4Ti Alloys after Irradiation with D Ions |
| title_full | Investigation of the Y Effect on the Microstructure Response and Radiation Hardening of PM V-4Cr-4Ti Alloys after Irradiation with D Ions |
| title_fullStr | Investigation of the Y Effect on the Microstructure Response and Radiation Hardening of PM V-4Cr-4Ti Alloys after Irradiation with D Ions |
| title_full_unstemmed | Investigation of the Y Effect on the Microstructure Response and Radiation Hardening of PM V-4Cr-4Ti Alloys after Irradiation with D Ions |
| title_short | Investigation of the Y Effect on the Microstructure Response and Radiation Hardening of PM V-4Cr-4Ti Alloys after Irradiation with D Ions |
| title_sort | investigation of the y effect on the microstructure response and radiation hardening of pm v 4cr 4ti alloys after irradiation with d ions |
| topic | ion irradiation vanadium alloy powder metallurgy yttrium segregation |
| url | https://www.mdpi.com/2075-4701/13/3/541 |
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