Abstract
This article presents a novel study on electrochemical codeposition of Mg-Li-Ce-La alloys on a molybdenum in LiCl-KCl-MgCl2-KF melts containing RE2(CO3)3 (rich in cerium) at a temperature range of 953 K to 1073 K (680 °C to 800 °C). The cyclic voltammetry proved the feasibility of the production of the alloys. The factors that affect the current efficiency were investigated. The optimal electrolytic temperature and cathodic current density was 1023 K (750 °C) and 15.9 A·cm−2, respectively. The chemical content, phases, morphology, and distribution of alloy elements were analyzed by inductively coupled plasma mass spectrometry, X-ray diffraction, and scanning electron microscopy, respectively. The intermetallic compounds between Mg and Ce (La) distribute in the grain boundary of the alloys, present as reticulate structures, and refine the grains.
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Acknowledgments
The work was supported financially by the 863 Project of Ministry of Science and Technology of China (2006AA03Z510), the National Natural Science Foundation of China (No. 50871033), the Scientific Technology Project of Heilongjiang Province (GC06A212), and the Scientific Technology Bureau of Harbin 2006PFXXG006. The authors are grateful to professors Liyi He and Jun Wang for their technical assistance and useful suggestions.
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Manuscript submitted September 28, 2009.
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Han, W., Zhang, Y., Ye, K. et al. Electrochemical Codeposition of Quaternary Mg-Li-Ce-La Alloys from Molten Salt. Metall Mater Trans B 41, 1123–1128 (2010). https://doi.org/10.1007/s11663-010-9395-z
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DOI: https://doi.org/10.1007/s11663-010-9395-z