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Basal and near- basal hydrides in Ti- 5AI- 2.5Sn

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Abstract

Cleavage cracking of titanium alloys has been reported to occur under conditions of stress corrosion cracking and sustained load cracking and, in such cases, the cleavage plane has often been reported as being near-basal, typically 14 to 16 deg from (000I)α However, the indices of this cleavage plane have not yet been definitely established, nor has the reason for its occurrence. In the present work the Ti-5Al-2.5Sn alloy has been hydrogenated to various levels and three hydride phases are found to occur. The first to precipitate is the y-hydride, occurring at 00123300 ppm H2. At 00123500 ppm H2 a near-basal hydride of unknown crystal structure is formed. There is no unique habit plane. At concentrations in excess of 600 ppm, hydrogen-stabilized stacking faults occur on the basal plane. The significance of these hydride phases is discussed with reference to stress corrosion cracking and sustained load cracking.

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References

  1. D. A. Meyn:Met. Tram., 1974, vol. 5, p. 2405.

    Article  CAS  Google Scholar 

  2. D. N. Williams:Mater. Sci. Eng., 1976, vol. 24, p. 53.

    Article  CAS  Google Scholar 

  3. D. A. Meyn and E. P. Dahlberg: Rept. N.R.L. Progress, p. 17, March 1969.

  4. M. J. Blackburn and J. C. Williams:Proc. Conf. Fundamental Aspects of Stress Corrosion Cracking, The Ohio State University, p. 620, 1969.

  5. D. A. Meyn and G. Sandoz:Trans. TMS-AIME, 1969, vol. 245, p. 1253.

    CAS  Google Scholar 

  6. D. A. Meyn:Met. Trans., 1971, vol. 2, p. 853.

    CAS  Google Scholar 

  7. J. C. Laziou:J. Less-Common Metals, 1976, vol. 46, p. 251.

    Article  CAS  Google Scholar 

  8. D. A. Meyn:Met. Trans., 1972, vol. 3, p. 2302.

    Article  Google Scholar 

  9. H. G. Nelson, D. P. Williams, and J. E. Stein:Met. Trans., 1972, vol. 3, p. 469.

    CAS  Google Scholar 

  10. R. J. H. Wanhill:Acta Met., 1973, vol. 21, p. 1253.

    Article  CAS  Google Scholar 

  11. D. N. Williams:Met. Trans., 1974, vol. 5, p. 2351.

    Article  CAS  Google Scholar 

  12. G. Sanderson and J. C. Scully:Trans. TMS-AIME, 1967, vol. 239, p. 1883.

    CAS  Google Scholar 

  13. J. D. Boyd:Trans. ASM, 1969, vol. 62, p. 977.

    CAS  Google Scholar 

  14. T.S.Liu and M.A.Steinberg:Trans. ASM, 1958, vol. 50, p. 455.

    Google Scholar 

  15. N. E. Paton and R. A. Spurting:Met. Trans. A, 1976, vol. 7A, p. 1769.

    Article  CAS  Google Scholar 

  16. A. W. Thompson and B. C. Odegard:Met. Trans., 1973, vol. 4, p. 899.

    Article  CAS  Google Scholar 

  17. A. H. Windle and G.C. Smith:Metal Sci.J., 1968, vol. 2, p. 187.

    Article  CAS  Google Scholar 

  18. T. L. Mackay:Met. Trans., 1971, vol. 2, p. 2299.

    CAS  Google Scholar 

  19. J. L. Waisman, G. Sines, and L. B. Robinson:Met. Trans., 1973, vol. 4, p. 291.

    CAS  Google Scholar 

  20. H. Margolin:Met. Trans. A, 1976, vol. 7A, p. 1233.

    CAS  Google Scholar 

  21. W. H. Hall and C. Hammond:Mater. Sci. Eng., 1978, vol. 32, p. 241.

    Article  CAS  Google Scholar 

  22. P. J.Postans and R. H. Jeal:Proc. Conf. Forging and Properties of Aerospace Materials, Leeds, Metals Society, Jan. 1977, in press.

  23. G. F. Pittinato and W. D. Hanna:Met. Trans., 1972, vol. 3, p. 2905.

    CAS  Google Scholar 

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Authors and Affiliations

  1. Department of Metallurgy, The Technical University of Denmark, Denmark

    Ian Wavell Hall

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  1. Ian Wavell Hall
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Hall, I.W. Basal and near- basal hydrides in Ti- 5AI- 2.5Sn. Metall Trans A 9, 815–820 (1978). https://doi.org/10.1007/BF02649790

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