Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2012, Vol. 33 ›› Issue (5): 689-693.DOI: -

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Study on refining process of V-Ti-Fe master alloy

Wang, Bin (1); Liu, Kui-Ren (1); Gao, Teng-Yue (1); He, Ji-Lin (2)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China; (2) Northwest Rare Metal Materials Research Institute, Shizuishan 753000, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Liu, K.-R.
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Abstract: The spray refining process was carried out to reduce the impurities of V-Ti-Fe master alloy. The influences of slag compositions and temperature on refining effect were investigated. The results showed that when the ratio of m(CaF2)/m(CaO) is 3.0, the slag amount is 35% of the alloy amount, the TiO2 amount is 10% of the slag amount and the refining temperature is 1600°C, a good refining effect is obtained. The content of Al decreases to 2.61% from 7.11% after the refining process. However the content of Si just decreases to 0.97% from 1.25%, the change range is smaller. XRD and SEM results showed that the refining process can remove oxide inclusions effectively. In addition, the componential segregation of the alloy is reduced after the refining process.

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