Preparation of RE-containing magnesium alloys via molten-salt-mediated magnesiothermic reduction
RE-containing magnesium alloys were prepared via molten-salt-mediated magnesiothermic reduction by using RE2O3 (RE=Y, Nd and Gd) and Mg metal as raw materials. The thermomechanical analysis of the magnesiothermic reduction reactions in molten salt was investigated. Then the molten-salt-mediated magn...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-03-01
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| Series: | Journal of Magnesium and Alloys |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221395672100116X |
| _version_ | 1827267567451897856 |
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| author | Zhimin Zhang Xuchen Lu Yan Yan |
| author_facet | Zhimin Zhang Xuchen Lu Yan Yan |
| author_sort | Zhimin Zhang |
| collection | DOAJ |
| description | RE-containing magnesium alloys were prepared via molten-salt-mediated magnesiothermic reduction by using RE2O3 (RE=Y, Nd and Gd) and Mg metal as raw materials. The thermomechanical analysis of the magnesiothermic reduction reactions in molten salt was investigated. Then the molten-salt-mediated magnesiothermic reduction process was studied from three different perspectives. After that, the RE-containing magnesium alloy was characterized by using chemical analysis, XRD analysis and SEM analysis. The magnesiothermic reduction was a liquid-liquid reaction with relatively weak driving force. During the melting process and the magnesiothermic reduction process, magnesium metal and the obtained alloy went up and down as a whole in molten salt, which improved the process safety without introducing chloride inclusions. Meanwhile, the hydrolysis of the RECl3-containing molten salt occurred at elevated temperature, which severely impeded the magnesiothermic reduction process. After the magnesiothermic reduction at 750 °C for 2.0 h, the content of RE and the common impurity elements in the obtained RE-containing alloy met the both requirements of the commercial WE43A and WE43B. |
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| format | Article |
| id | doaj.art-de137812d5f44bd389e2b29c2040b4b8 |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2025-03-22T04:35:48Z |
| publishDate | 2023-03-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-de137812d5f44bd389e2b29c2040b4b82024-04-28T01:23:03ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672023-03-01113981990Preparation of RE-containing magnesium alloys via molten-salt-mediated magnesiothermic reductionZhimin Zhang0Xuchen Lu1Yan Yan2State Key Laboratory of Multi-phase Complex systems, Institution of Process Engineering, Chinese Academy of Science, Haidian District, Beijing 100190, PR ChinaCorresponding author. No.1 Bei-er-tiao, Zhong-guan-cun, Haidian District, Beijing 100190, China,; State Key Laboratory of Multi-phase Complex systems, Institution of Process Engineering, Chinese Academy of Science, Haidian District, Beijing 100190, PR ChinaState Key Laboratory of Multi-phase Complex systems, Institution of Process Engineering, Chinese Academy of Science, Haidian District, Beijing 100190, PR ChinaRE-containing magnesium alloys were prepared via molten-salt-mediated magnesiothermic reduction by using RE2O3 (RE=Y, Nd and Gd) and Mg metal as raw materials. The thermomechanical analysis of the magnesiothermic reduction reactions in molten salt was investigated. Then the molten-salt-mediated magnesiothermic reduction process was studied from three different perspectives. After that, the RE-containing magnesium alloy was characterized by using chemical analysis, XRD analysis and SEM analysis. The magnesiothermic reduction was a liquid-liquid reaction with relatively weak driving force. During the melting process and the magnesiothermic reduction process, magnesium metal and the obtained alloy went up and down as a whole in molten salt, which improved the process safety without introducing chloride inclusions. Meanwhile, the hydrolysis of the RECl3-containing molten salt occurred at elevated temperature, which severely impeded the magnesiothermic reduction process. After the magnesiothermic reduction at 750 °C for 2.0 h, the content of RE and the common impurity elements in the obtained RE-containing alloy met the both requirements of the commercial WE43A and WE43B.http://www.sciencedirect.com/science/article/pii/S221395672100116XMagnesium alloyRare earthMagnesiothermic reductionMolten salt |
| spellingShingle | Zhimin Zhang Xuchen Lu Yan Yan Preparation of RE-containing magnesium alloys via molten-salt-mediated magnesiothermic reduction Journal of Magnesium and Alloys Magnesium alloy Rare earth Magnesiothermic reduction Molten salt |
| title | Preparation of RE-containing magnesium alloys via molten-salt-mediated magnesiothermic reduction |
| title_full | Preparation of RE-containing magnesium alloys via molten-salt-mediated magnesiothermic reduction |
| title_fullStr | Preparation of RE-containing magnesium alloys via molten-salt-mediated magnesiothermic reduction |
| title_full_unstemmed | Preparation of RE-containing magnesium alloys via molten-salt-mediated magnesiothermic reduction |
| title_short | Preparation of RE-containing magnesium alloys via molten-salt-mediated magnesiothermic reduction |
| title_sort | preparation of re containing magnesium alloys via molten salt mediated magnesiothermic reduction |
| topic | Magnesium alloy Rare earth Magnesiothermic reduction Molten salt |
| url | http://www.sciencedirect.com/science/article/pii/S221395672100116X |
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