Pressure Requirements for Diffusion Bonding Titanium

  • C. H. Hamilton


The requirements of pressure-time combinations for achieving intimate contact between two surfaces to be solid-state bonded are considered. The bond surfaces are assumed to exhibit relatively rough surfaces as a result of prior machining or other surface preparation, and the resultant surface asperities are considered to be removed by creep deformation under pressure during the bonding process. The deformation of both continuous groove-like asperities and local pyramidal-like asperities are considered analytically. The analysis provides a quantitative method for assessing the complex inter-relationships among pressure, bond time, and bonding temperature. Comparison with experimental results demonstrates generally good agreement with the prediction of these parametric combinations.


Creep Deformation Bonding Temperature Diffusion Bond Bond Time Bond Line 
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  1. 1.
    Rehder, R. J. and Lovell, D. T., “Process Development for Diffusion Welding Ti-6A1–4V,” Welding Research Supplement, Vol. 49, No. 5, May 1970, p. 214-S.Google Scholar
  2. 2.
    Kellerer, H. G. and Milacek, L. H., “Determination of Optimum Diffusion Welding Temperatures for Ti-6A1–4V,” Welding Research Supplement, Vol. 49, No. 5, May 1970, p. 219-S.Google Scholar
  3. 3.
    Krivoshei, A. V., “Joint Formation in the Diffusion Welding of Similar and Mutually Soluble Metals,” Svar. Proiz., No. 9, 1969, p. 48.Google Scholar
  4. 4.
    Owczarski, W. A., King, W. H. and O’Connor, J. W., ‘The Tensile Properties and Fracture Characteristics of Titanium Diffusion Welds,“ Welding Research Supplement, Vol. 48, No. 9, September 1969, p. 377-s.Google Scholar
  5. 5.
    King, W. H. and Owczarski, W. A., “Additional Studies on the Diffusion Welding of Titanium,” Welding Research Supplement, Vol. 47, No. 10, Oct. 1968, p. 446-S.Google Scholar
  6. 6.
    Smith, C. A., “Diffusion Bonding of Titanium Alloys, ” AMRA CR 66–10/1 - Final U.S. Army Materials Research Agency, Watertown, Mass., June 30, 1968.Google Scholar
  7. 7.
    Cline, C. L., “An Analytical and Experimental Study of Diffusion Bonding,” Welding Research Supplement, Vol. 45, No. 11, Nov. 1966, p. 481-S.Google Scholar
  8. 8.
    Hill, R., Plasticity, Oxford University Press, London, 1956.Google Scholar
  9. 9.
    Thomsen, E. G., Yang, C. T. and Kobayashi, S., `Mechanics of Plastic Deformation in Metal Processing,“ The Macmillan Co., N. Y., 1965.Google Scholar
  10. 10.
    Lee, D. and Backofen, W. A., “Superplasticity in Some Titanium and Zirconium Alloys,” Trans. AIME, Vol. 239, 1967, p. 1034.Google Scholar
  11. 11.
    Hamilton, C. H., Unpublished Data, Los Angeles Division, North American Rockwell Corporation, Los Angeles, California.Google Scholar
  12. 12.
    Conrad, H., “Project Themis, Metal Deformation Processing” Technical Report AFML-TR-71–18, Air Force Materials Laboratory, April 1971.Google Scholar
  13. 13.
    Paton, N. E., Unpublished Data, Science Center, North American Rockwell Corporation, Thousand Oaks, California.Google Scholar
  14. 14.
    Bowden, H. G. and Baluffi, R. W., ‘Measurements of Self-diffusion Coefficients in Copper from the Annealing of Voids,“ Philosophical Magazine, Vol. 19, No. 161, May 1969, p. 1001.CrossRefGoogle Scholar
  15. 15.
    Padian, W. D. and Supan, E. C., “Fabrication and Evaluation of Diffusion-Bonded Laminated Sections,” Technical Report AFML-TR71–131, Air Force Materials Laboratory, August 1971.Google Scholar
  16. 16.
    Toy, A., Unpublished Data, Los Angeles Division, North American Rockwell Corporation, Los Angeles, California.Google Scholar

Copyright information

© Springer Science+Business Media New York 1973

Authors and Affiliations

  • C. H. Hamilton
    • 1
  1. 1.Materials and Processes Engineering Los Angeles DivisionNorth American Rockwell CorporationLos AngelesUSA

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