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Synthesis of High-Quality FeV55N Alloy by Carbonitrothermic Reduction of Vanadium Pentoxide–Ferric Oxide Mixture

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Abstract

High-quality FeV55N alloy was successfully prepared with a carbonitrothermic reduction method. The effects of the reaction temperature and C/O molar ratio on the oxygen, carbon, and nitrogen contents as well as on the density of the alloy were investigated in detail. The nitrogen content of the final product reached 12.99% when the C/O molar ratio was 0.8 but decreased with increasing residual carbon content. The residual carbon and oxygen contents could be controlled to low levels through use of the proposed process, and a high temperature was beneficial for their further reduction. Moreover, at 1823 K, the density of the product reached 5.62 g/cm3. With the chemical compositions and density, the product prepared by this process can meet the requirements of the alloy additives.

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Acknowledgements

This work was supported by the Natural Science Foundation of China (Grant No. U1460201).

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Authors and Affiliations

  1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, People’s Republic of China

    Yue-Dong Wu, Guo-Hua Zhang & Kuo-Chih Chou

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  1. Yue-Dong Wu
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  2. Guo-Hua Zhang
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  3. Kuo-Chih Chou
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Correspondence to Guo-Hua Zhang.

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Wu, YD., Zhang, GH. & Chou, KC. Synthesis of High-Quality FeV55N Alloy by Carbonitrothermic Reduction of Vanadium Pentoxide–Ferric Oxide Mixture. JOM 69, 1676–1681 (2017). https://doi.org/10.1007/s11837-017-2435-2

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  • DOI: https://doi.org/10.1007/s11837-017-2435-2

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