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Materials Science

, Volume 30, Issue 6, pp 669–674 | Cite as

Evolution of the structure and phase composition of MeVa-MeIVa alloys under the action of liquid lithium

  • O. I. Eliseeva
Article
  • 17 Downloads

Abstract

We present the results of a thorough investigation of the processes occurring on the surface and inside MeVA-MeIVA alloys as a result of their long-term contact with liquid lithium. With V-Ti alloys as an example, we determine the role of nonmetallic impurities (O, N, C) in corrosion processes and suggest a mechanism of the formation of structure and phase composition of the investigated alloys under the action of liquid lithium. In general, the redistribution of interstitials in MeVA-MeIVA alloys leads to the formation of a heterogeneous structure that consists of three zones: (I) a zone where lithium interacts with a base metal, (II) a single-phase zone of a V-Ti-O (C, N) solid solution formed as a result of the dissolution of the oxide phase, and (III) a two-phase zone of internal nitriding with particles of oxynitrides of variable stoichiometry. It is also demonstrated that the directions and rates of diffusive flows of nonmetallic atoms on the melt-metal interface are controllable by rational alloying.

Keywords

Oxide Lithium Solid Solution Phase Composition Base Metal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    V. I. Nikitin,Physicochemical Phenomena Connected with the Interaction of Liquid and Solid Metals [in Russian], Atomizdat, Moscow (1967).Google Scholar
  2. 2.
    D. L. Smith and K. Natesan, “Influence of nonmetallic impurity elements on the compatibility of liquid lithium with potential CTR containment materials,”Nucl. Technol. 22, No. 3, 392–404 (1974).Google Scholar
  3. 3.
    M. I. Ignativ, “Thermodynamic analysis of the redistribution of interstitial elements provoked by the interaction between lithium and niobium alloys,”Metallofizika, No. 2, 3–6, (1985).Google Scholar
  4. 4.
    E. M. Lyutyi, R. I. Bobyk, and A. I. Dedyurin, “Alloying of vanadium and its influence on the compatibility with liquid lithium,”Fiz.-Khim. Mekh. Mater. 25, No. 5, 85–90 (1989).Google Scholar
  5. 5.
    E. M. Lyutyi, V. M. Adeev, R. I. Bobyk, and O. I. Eliseeva, “Distribution of interstitial impurities in titanium-vanadium alloys after holding in liquid lithium,”Fiz.-Khim. Mekh. Mater. 29, No. 5, 56–60 (1993).Google Scholar
  6. 6.
    A. G. Arakelov, V. V. Vavilova, L. N. Galkin, and A. F. Gekov, “Corrosion of vanadium alloys in lithium,”Zashch. Met. 17, No. 2, 233–237 (1981).Google Scholar
  7. 7.
    A. G. Arakelov, V. V. Vavilova, A. F. Gekov, and O. N. Zasorin, “Effect of oxygen on the penetration of lithium in niobium at 400°C,”Izv. Akad. Nauk SSSR, Neorg. Mater. 13, No. 5, 1652–1655 (1977).Google Scholar
  8. 8.
    O. D. Smiyan, B. S. Kasatkin, and V. F. Musiyachenko, “Diffusion transport of gas-generating impurities in heated metals,” in:Materials of the Third All-Union Conference “Methods for the Detection of Gases in Metals and for the Investigation of Their State” [in Russian], Nauka, Moscow (1973), pp. 61–73.Google Scholar

Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • O. I. Eliseeva

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