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Hydrogen permeation and diffusion in inconel 718 and incoloy 903

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Abstract

Hydrogen permeation and diffusion have been measured in two high strength superalloys, Inconel 718 and Incoloy 903. Measurements were made over the temperature range of 150 to 500°C, with applied hydrogen pressures of 1 to 3 atm. The permeabilityp and dif-fusivityD values were used to derive the hydrogen solubility S in these materials. For Inconel 718 the results depend to some extent on the heat treatment of the alloy. For this alloy in the solution treated condition, the results for φ andD are: D.1.07xl0-2exp(-11,900/RT) cm2/s For Incoloy 903, the results are: φ = 9.50x10-3 exp (-13,710/RT) cm3(NTP)/cm-s-atm1/ RT cm-s-atm1/2D = 2.46 x 10-2(-12,590/RT) cm2/s where the activation energies are in cal/mole. The measured diffusivities and permeabilities are very similar for the two alloys.

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References

  1. W. M. Robertson:Zeit. Metallkunde, 1973, vol. 64, pp. 436–43.

    CAS  Google Scholar 

  2. W. G. Perkins:J. Vac. Set TechnoL, 1973, vol. 10, pp. 543–56.

    Article  CAS  Google Scholar 

  3. R. J. Walter and W. T. Chandler:Mater. Sci Eng., 1971, vol. 8, pp. 90–97;

    Article  CAS  Google Scholar 

  4. R. J. Walter, R. P. Jewett, and W. T. Chandler:Mater. Sci Eng., 1969–70, vol. 5, pp. 99–110.

    Google Scholar 

  5. C. G. Rhodes and A. W. Thompson:Met. Trans. A, 1977, vol. 8A, pp. 949–54.

    CAS  Google Scholar 

  6. J. K. Gorman and W. R Nardella:Vacuum, 1962, vol. 12, pp. 19–24.

    Article  Google Scholar 

  7. J. W. Guthrie, L.C. Beavis, D. R. Begeal, and W. G. Perkins:J. Nucl. Mater., 1974, vol. S3, pp. 313–22.

    Article  Google Scholar 

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  1. Science Center, Rockwell International, 91360, Thousand Oaks, CA

    W. M. Robertson (Member of Technical Staff)

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  1. W. M. Robertson
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Robertson, W.M. Hydrogen permeation and diffusion in inconel 718 and incoloy 903. Metall Trans A 8, 1709–1712 (1977). https://doi.org/10.1007/BF02646873

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  • DOI: https://doi.org/10.1007/BF02646873

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