Metal Science and Heat Treatment

, Volume 30, Issue 10, pp 790–794 | Cite as

Nature of the effect of isomorphicβ-stabilizing elements on the susceptibility of titaniumα-alloys to corrosion cracking in aqueous solutions of chlorides

  • L. A. Ivanova
  • A. I. Igolkin
  • Yu. D. Khesin
Titanium and its Alloys
  • 20 Downloads

Conclusions

  1. 1.

    The reduced susceptibility of titanium alloys to corrosion cracking in solutions of chlorides upon introduction of β-stabilizers is connected with the suppression of segregation of α2-phase, and it depends on the supersaturation of α-solid solution with β-stabilizers.

     
  2. 2.

    The concentration of α-phase, and correspondingly the sensitivity to CC are determined by the conditions of hot forming and heat treatment of the semiproducts. The effectiveness of alloying is ensured by limiting the heating time in the high-temperature part of the (α+β)-region. Annealing or plastic deformation in the β-region are decisive for the greatest effectiveness of alloying.

     

Keywords

Chloride Titanium Aqueous Solution Heat Treatment Plastic Deformation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. 1.
    B. B. Chechulin, S. S. Ushkov, I. N. Razuvaeva, and V. N. Gol'dfain, Titanium Alloys in Engineering [in Russian], Mashinostroenie, Leningrad (1977).Google Scholar
  2. 2.
    Yu. D. Khesin, and B. B. Chechulin, Fatigue Strength and Corrosion Strength of Titanium Alloys [in Russian], Metallurgiya, Moscow (1987).Google Scholar
  3. 3.
    J. D. Jackson and W. K. Bound, "Stress corrosion cracking of titanium and titanium alloys," in: The Science, Technology and Application of Titanium Alloys (1970), pp. 267–281.Google Scholar
  4. 4.
    R. A. Wood, J. D. Boud, and Jafee, "The effect of alloy composition on the salt-water stress-corrosion susceptibility of titanium-aluminum base alloys," Titanium, Science and Technology,4, 2638–2654 (1973).Google Scholar
  5. 5.
    V. A. Zhukov, L. A. Ivanova, T. K. Marinets, et al., "The thermal stability of pseudo-α-alloys of titanium and methods of evaluating it," Metalloved. Term. Obrab. Met., No. 12, 37–39 (1981).Google Scholar
  6. 6.
    J. W. Hall, "Basal and near-basal hydrides in Ti-5 Al-2.5 Sn," Metall. Trans.,9A, No. 6, 815–820 (1978).Google Scholar
  7. 7.
    S. Orman and G. Picton, "The role of hydrogen in the stress-corrosion cracking of titanium alloys," Corrosion Sci.,14, 451–459 (1974).Google Scholar
  8. 8.
    D. N. Fager and W. F. Spurr, "Some characteristics of aqueous stress-corrosion in titanium alloys," TASM,61, 283–290 (1968).Google Scholar
  9. 9.
    F. A. Crossley, "Effect of the ternary additions: O, Sn, Zr, Sb, Mo and V on the α/α+ Ti3Al boundary of Ti−Al base alloys," TASM,245, No. 9, 1963–1965 (1969).Google Scholar
  10. 10.
    F. A. Crossley, "Kinetics of Ti3Al grain boundary precipitations in Ti−Al binary and Ti−Al−X ternary alloys and correlation with mechanical properties," Metall. Trans.,1, No. 1, 1921–1929 (1970).Google Scholar
  11. 11.
    C. Ramachandra and Vakil Sinoh, "Precipitation of the ordered α-titanium-aluminum (Ti3Al) phase in alloy Ti-6.3 Al-2 Zr-3 Mo-0.3 Si," Scripta Metallurgica,20, No. 4, 509–512 (1986).Google Scholar

Copyright information

© Plenum Publishing Corporation 1989

Authors and Affiliations

  • L. A. Ivanova
  • A. I. Igolkin
  • Yu. D. Khesin

There are no affiliations available

Personalised recommendations