The high thermal stability induced by a synergistic effect of ZrC nanoparticles and Re solution in W matrix in hot rolled tungsten alloy
The synergistic effect of ZrC nanoparticle pining and Re solution in W matrix on the thermal stability of tungsten was studied by investigating the evolution of the microstructure, hardness and tensile properties after annealing in a temperature range of 1000–1700 °C. The results of metallography, e...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573322001322 |
| _version_ | 1798038193601249280 |
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| author | T. Zhang W.Y. Du C.Y. Zhan M.M. Wang H.W. Deng Z.M. Xie H. Li |
| author_facet | T. Zhang W.Y. Du C.Y. Zhan M.M. Wang H.W. Deng Z.M. Xie H. Li |
| author_sort | T. Zhang |
| collection | DOAJ |
| description | The synergistic effect of ZrC nanoparticle pining and Re solution in W matrix on the thermal stability of tungsten was studied by investigating the evolution of the microstructure, hardness and tensile properties after annealing in a temperature range of 1000–1700 °C. The results of metallography, electron backscatter diffraction pattern and Vickers micro-hardness indicate that the rolled W-1wt%Re-0.5 wt%ZrC alloy has a higher recrystallization temperature (1600 °C–1700 °C) than that of the rolled pure W (1200 °C), W-0.5 wt%ZrC (1300 °C), W-0.5 wt%HfC (1400–1500 °C) and W–K-3wt%Re alloy fabricated by the same technology. The molecular dynamics simulation results indicated that solution Re atoms in W matrix can slow down the self-diffusion of W atoms and form dragging effect to delay the growth of W grain, moreover, the diffusion coefficient decrease with increasing Re content. In addition, the ZrC nanoparticles can pin the grain boundaries and dislocations effectively, preventing the recrystallization. Therefore, synergistic effect of solid solution Re element and dispersed ZrC nanoparticles significantly increase recrystallization temperature. |
| first_indexed | 2024-04-11T21:36:53Z |
| format | Article |
| id | doaj.art-aba5b9d628724aea849e2545680eaa13 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-04-11T21:36:53Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-aba5b9d628724aea849e2545680eaa132022-12-22T04:01:44ZengElsevierNuclear Engineering and Technology1738-57332022-08-0154828012808The high thermal stability induced by a synergistic effect of ZrC nanoparticles and Re solution in W matrix in hot rolled tungsten alloyT. Zhang0W.Y. Du1C.Y. Zhan2M.M. Wang3H.W. Deng4Z.M. Xie5H. Li6School of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, China; Corresponding author.School of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaSchool of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaNingbo Branch of Chinese Academy of Ordnance Science, Ningbo, 315103, ChinaSchool of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaKey Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, China; Corresponding author.School of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaThe synergistic effect of ZrC nanoparticle pining and Re solution in W matrix on the thermal stability of tungsten was studied by investigating the evolution of the microstructure, hardness and tensile properties after annealing in a temperature range of 1000–1700 °C. The results of metallography, electron backscatter diffraction pattern and Vickers micro-hardness indicate that the rolled W-1wt%Re-0.5 wt%ZrC alloy has a higher recrystallization temperature (1600 °C–1700 °C) than that of the rolled pure W (1200 °C), W-0.5 wt%ZrC (1300 °C), W-0.5 wt%HfC (1400–1500 °C) and W–K-3wt%Re alloy fabricated by the same technology. The molecular dynamics simulation results indicated that solution Re atoms in W matrix can slow down the self-diffusion of W atoms and form dragging effect to delay the growth of W grain, moreover, the diffusion coefficient decrease with increasing Re content. In addition, the ZrC nanoparticles can pin the grain boundaries and dislocations effectively, preventing the recrystallization. Therefore, synergistic effect of solid solution Re element and dispersed ZrC nanoparticles significantly increase recrystallization temperature.http://www.sciencedirect.com/science/article/pii/S1738573322001322Dispersion strengtheningRe solid solutionThermal stabilityMicrostructureMechanical properties |
| spellingShingle | T. Zhang W.Y. Du C.Y. Zhan M.M. Wang H.W. Deng Z.M. Xie H. Li The high thermal stability induced by a synergistic effect of ZrC nanoparticles and Re solution in W matrix in hot rolled tungsten alloy Nuclear Engineering and Technology Dispersion strengthening Re solid solution Thermal stability Microstructure Mechanical properties |
| title | The high thermal stability induced by a synergistic effect of ZrC nanoparticles and Re solution in W matrix in hot rolled tungsten alloy |
| title_full | The high thermal stability induced by a synergistic effect of ZrC nanoparticles and Re solution in W matrix in hot rolled tungsten alloy |
| title_fullStr | The high thermal stability induced by a synergistic effect of ZrC nanoparticles and Re solution in W matrix in hot rolled tungsten alloy |
| title_full_unstemmed | The high thermal stability induced by a synergistic effect of ZrC nanoparticles and Re solution in W matrix in hot rolled tungsten alloy |
| title_short | The high thermal stability induced by a synergistic effect of ZrC nanoparticles and Re solution in W matrix in hot rolled tungsten alloy |
| title_sort | high thermal stability induced by a synergistic effect of zrc nanoparticles and re solution in w matrix in hot rolled tungsten alloy |
| topic | Dispersion strengthening Re solid solution Thermal stability Microstructure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S1738573322001322 |
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