Skip to main content
SpringerLink
Log in

Addition of vanadium to silicide master alloys for plasma-deposited coatings

  • Published:
Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

An investigation was carried out into the effect of vanadium on the structure and phase composition of some alloys of the Si-Ti-Cr system. The microstructure of resultant alloys is the same as that of similar vanadium-free materials. Vanadium is concentrated in the refractory phase, entering into the composition of a complex (Cr, Ti, V)Si2 disilicide. The remaining structural components are, as in the vanadium-free ternary alloys, free silicon and a eutectic. A study was made also of the effect of vanadium on the oxidation kinetics of alloys of the Si-Ti-Cr system exposed for 100 h to air at 1300‡C. Alloying with vanadium substantially slows down the rate of oxidation of these alloys and changes the law of oxidation from parabolic, characterizing the ternary alloys, to logarithmic for the vanadium-containing alloys. The 100-h rate of oxidation of an alloy of optimum composition at 1300‡C is 0.04 mg/cm2 · h. The optimum particle size of Si-Ti-Cr-V alloy powders intended for the application of coatings by gasothermic spray-deposition has been established.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature cited

  1. E.V. Vasil'eva and V. S. Terent'eva, “Structure, phase composition, and oxidation resistance of alloys of the system Si-Ti-Cr,” Poroshk. Metall., No. 1, 48–53 (1975).

    Google Scholar 

  2. R. Kieffer, F. Benesovsky, and R. Gallistl, “Beitrag zum System Wolfram-Silizium und uber die Zunderbestandigkeit einiger Silizide,” Z. Metallk.,43, 284–291 (1952).

    Google Scholar 

  3. P. Kofstad, High-Temperature Oxidation of Metals [Russian translation], Mir, Moscow (1969).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Moscow Aviation Institute, USSR

    V. S. Terent'eva, E. D. Boikov & G. M. Khokhlacheva

Authors
  1. V. S. Terent'eva
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. D. Boikov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. M. Khokhlacheva
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Poroshkovaya Metallurgiya, No. 5(233), pp. 46–50, May, 1982.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Terent'eva, V.S., Boikov, E.D. & Khokhlacheva, G.M. Addition of vanadium to silicide master alloys for plasma-deposited coatings. Powder Metall Met Ceram 21, 385–388 (1982). https://doi.org/10.1007/BF00802109

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00802109

Keywords

Search

Navigation