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Effect of barothermal processing on the composition and properties of a polycrystalline high-temperature nickel alloy

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Abstract

Chemical inhomogeneities in the form of concentric zones enriched in aluminum and titanium have been revealed in cylindrical samples of a polycrystalline multicomponent high-temperature nickel alloy by electron probe microanalysis. Barothermal processing has been shown to accelerate aluminum and titanium diffusion in the alloy and to promote the accumulation of these elements in the surface layer of the sample. The final stage of the diffusion process is the formation of a surface layer enriched in Al and Ti, which enhances the corrosion stability of the alloy.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    V. P. Sanygin & A. M. Kvardakov

  2. Institute of Physicochemical Problems in Ceramic Science, Russian Academy of Sciences, Ozernaya ul. 48, Moscow, 119361, Russia

    A. G. Padalko, A. N. Veselov & S. P. Avdyukhin

Authors
  1. V. P. Sanygin
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  2. A. M. Kvardakov
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  3. A. G. Padalko
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  4. A. N. Veselov
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  5. S. P. Avdyukhin
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Additional information

Original Russian Text © V.P. Sanygin, A.M. Kvardakov, A.G. Padalko, A.N. Veselov, S.P. Avdyukhin, 2007, published in Neorganicheskie Materialy, 2007, Vol. 43, No. 2, pp. 188–192.

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Sanygin, V.P., Kvardakov, A.M., Padalko, A.G. et al. Effect of barothermal processing on the composition and properties of a polycrystalline high-temperature nickel alloy. Inorg Mater 43, 148–152 (2007). https://doi.org/10.1134/S0020168507020100

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  • DOI: https://doi.org/10.1134/S0020168507020100

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