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Peculiarities of Pressure Welding of Pd Foil to Stainless Steel

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Inorganic Materials: Applied Research Aims and scope

Abstract

The peculiarities of joining a palladium alloy foil to 12Cr18Ni10Ti stainless steel by diffusion and resistance welding are considered. It is shown that both technologies can be realized only using an intermediate nickel layer with a thickness of 0.1 mm, which provides uniform strength and joint tightness and also prevents the formation of brittle intermetallic compounds. Diffusion welding allows one to obtain high-quality joints of palladium alloy to stainless steel, but this process proceeds at relatively high (950°C) temperatures and takes a long time. Resistance welding does not have these disadvantages, but the outcome significantly depends on the correct choice of welding conditions, upon which the spot weld nugget must be displaced as much as possible toward the stainless steel and the intermediate nickel layer. The connection of the palladium alloy to the intermediate layer occurs owing to mutual diffusion occurring during the passage of the welding pulse.

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Authors and Affiliations

  1. Ramenskoe Instrument Engineering Design Bureau, 140103, Ramenskoe, Moscow oblast, Russia

    A. V. Liushinsky

  2. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334, Moscow, Russia

    G. S. Burkhanov, N. R. Roshan & E. M. Chistov

Authors
  1. A. V. Liushinsky
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  2. G. S. Burkhanov
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  3. N. R. Roshan
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  4. E. M. Chistov
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Correspondence to A. V. Liushinsky, G. S. Burkhanov, N. R. Roshan or E. M. Chistov.

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Translated by K. Utegenov

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Liushinsky, A.V., Burkhanov, G.S., Roshan, N.R. et al. Peculiarities of Pressure Welding of Pd Foil to Stainless Steel. Inorg. Mater. Appl. Res. 11, 681–685 (2020). https://doi.org/10.1134/S2075113320030314

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  • DOI: https://doi.org/10.1134/S2075113320030314

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