The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion Irradiation
After being self-ion implanted at 400 °C and 550 °C, the microstructure and irradiation hardness of kilogram-scale V-4Cr-4Ti alloys were studied using a transmission electron microscope (TEM) and nano-indentation test technology. Irradiation was performed using self-ions (V<sup>2+</sup>)...
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2025-01-01
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| author | Yaxia Wei Yinshu Zhao Min Xu Pengfei Zheng Liping Guo Hongtai Luo Pengbo Zhang Guihang Zhang Hua Zhao |
| author_facet | Yaxia Wei Yinshu Zhao Min Xu Pengfei Zheng Liping Guo Hongtai Luo Pengbo Zhang Guihang Zhang Hua Zhao |
| author_sort | Yaxia Wei |
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| description | After being self-ion implanted at 400 °C and 550 °C, the microstructure and irradiation hardness of kilogram-scale V-4Cr-4Ti alloys were studied using a transmission electron microscope (TEM) and nano-indentation test technology. Irradiation was performed using self-ions (V<sup>2+</sup>) at 2.5 MeV with design influences of 1.15 × 10<sup>15</sup> ions cm<sup>−2</sup>, 4.59 × 10<sup>15</sup> ions cm<sup>−2</sup>, and 9.17 × 10<sup>15</sup> ions cm<sup>−2</sup>, so that the peak damages of V-4Cr-4Ti alloys are 1, 4, and 8 dpa, respectively. Compared with the 400 °C samples, the 550 °C samples exhibited a higher-density number of dislocation loops and increased hardness and reached saturation at lower irradiation doses. The irradiation temperature was mainly responsible for these differences, and the potential mechanism for its effect on the irradiation behavior was discussed. |
| format | Article |
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| institution | DOAJ |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-01-01 |
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| spelling | doaj-art-02c08f4b07f7404e86e1fee633c745412025-08-20T02:44:53ZengMDPI AGMetals2075-47012025-01-0115210410.3390/met15020104The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion IrradiationYaxia Wei0Yinshu Zhao1Min Xu2Pengfei Zheng3Liping Guo4Hongtai Luo5Pengbo Zhang6Guihang Zhang7Hua Zhao8Southwestern Institute of Physics, Chengdu 610041, ChinaSouthwestern Institute of Physics, Chengdu 610041, ChinaSouthwestern Institute of Physics, Chengdu 610041, ChinaSouthwestern Institute of Physics, Chengdu 610041, 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, ChinaCollege of Science, Dalian Maritime University, Dalian 116026, ChinaSouthwestern Institute of Physics, Chengdu 610041, ChinaSouthwestern Institute of Physics, Chengdu 610041, ChinaAfter being self-ion implanted at 400 °C and 550 °C, the microstructure and irradiation hardness of kilogram-scale V-4Cr-4Ti alloys were studied using a transmission electron microscope (TEM) and nano-indentation test technology. Irradiation was performed using self-ions (V<sup>2+</sup>) at 2.5 MeV with design influences of 1.15 × 10<sup>15</sup> ions cm<sup>−2</sup>, 4.59 × 10<sup>15</sup> ions cm<sup>−2</sup>, and 9.17 × 10<sup>15</sup> ions cm<sup>−2</sup>, so that the peak damages of V-4Cr-4Ti alloys are 1, 4, and 8 dpa, respectively. Compared with the 400 °C samples, the 550 °C samples exhibited a higher-density number of dislocation loops and increased hardness and reached saturation at lower irradiation doses. The irradiation temperature was mainly responsible for these differences, and the potential mechanism for its effect on the irradiation behavior was discussed.https://www.mdpi.com/2075-4701/15/2/104vanadium alloyirradiation hardeningdislocation loopsself-ion irradiation |
| spellingShingle | Yaxia Wei Yinshu Zhao Min Xu Pengfei Zheng Liping Guo Hongtai Luo Pengbo Zhang Guihang Zhang Hua Zhao The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion Irradiation Metals vanadium alloy irradiation hardening dislocation loops self-ion irradiation |
| title | The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion Irradiation |
| title_full | The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion Irradiation |
| title_fullStr | The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion Irradiation |
| title_full_unstemmed | The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion Irradiation |
| title_short | The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion Irradiation |
| title_sort | effect of irradiation dose and temperature on irradiation hardening and microstructure study of hot forged v 4cr 4ti under self ion irradiation |
| topic | vanadium alloy irradiation hardening dislocation loops self-ion irradiation |
| url | https://www.mdpi.com/2075-4701/15/2/104 |
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