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Effect of palladium on diffusion processes in the system tungsten-chromium

  • Test Methods and Properties of Materials
  • Published:
Soviet Powder Metallurgy and Metal Ceramics Aims and scope

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Conclusions

  1. 1.

    A study, based on electron probe microanalysis, was made of the distribution of the components in the systems W/Cr and W/Pd-Cr after various heat treatments.

  2. 2.

    It was established that coating W specimens with palladium substantially intensifies diffusion processes. In specimens without palladium coatings no interdiffusion of the two components (W and Cr) is observed even in the course of prolonged annealing.

  3. 3.

    It is shown that, in the case of palladium-plated tungsten specimens, the width of the resultant diffusion zones depends on the heat treatment conditions. In the work described the diffusion zone was 15.μ wide after 30 min of annealing and 30μ wide after 12 h.

  4. 4.

    It was found that palladium, being a surface active element, enriches the surface layers of specimens, giving rise to the formation of complex palladium-chromium coatings.

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Authors and Affiliations

  1. Institute of Materials Science, Academy of Sciences of the Ukrainian SSR, Ukraine

    I. Ya. Dzykovich, V. V. Panichkina, V. V. Skorokhod & L. I. Shaiderman

  2. E. O. Paton Institute of Electrowelding, Academy of Sciences of the Ukrainian SSR, Ukraine

    I. Ya. Dzykovich, V. V. Panichkina, V. V. Skorokhod & L. I. Shaiderman

Authors
  1. I. Ya. Dzykovich
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  2. V. V. Panichkina
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  3. V. V. Skorokhod
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  4. L. I. Shaiderman
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Additional information

Translated from Poroshkovaya Metallurgiya, No. 2(158), pp. 86–89, February, 1976.

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Dzykovich, I.Y., Panichkina, V.V., Skorokhod, V.V. et al. Effect of palladium on diffusion processes in the system tungsten-chromium. Powder Metall Met Ceram 15, 151–153 (1976). https://doi.org/10.1007/BF00793571

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  • DOI: https://doi.org/10.1007/BF00793571

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