Skip to main content

Advertisement

SpringerLink
Log in

Enhancement of the Stress Corrosion Sensitivity of AA5083 by Heat Treatment

  • Symposium: International Symposium on Stress Corrosion Cracking in Structural Materials
  • Published:
Metallurgical and Materials Transactions A Aims and scope Submit manuscript

Abstract

In this study, the stress corrosion cracking (SCC) resistance of AA5083 is intentionally degraded by a series of progressively longer annealing treatments at 448 K (175 °C) that create a two-phase microstructure. Precipitation of strongly anodic Mg2Al3, known as β-phase, occurs heterogeneously with substantial precipitation along the grain boundaries, as observed by differential interference microscopy. Ultimate tensile strength, yield strength, and strain to failure of AA5083 alloy were found to be independent of the amount of β-phase precipitates, making AA5083 an ideal system to study the relative contributions of anodic dissolution and hydrogen embrittlement. Open circuit dropwise exposure SCC tests with precracked double cantilever beam (DCB) specimens made from the AA5083 alloy with different heat treatment conditions were conducted using 3.5 pct NaCl solution at an initial stress intensity factor (K I ) of \( 1 5\,{\text{ksi}}\sqrt {\text{in}} .\;\left( { 1 6. 5\,{\text{MPa}}\sqrt {\text{m}} } \right). \) Two SCC characteristics, initial crack growth rate and incubation time, were found to be strongly dependent on the amount of β-phase precipitates. Initial crack growth rate increased sigmoidally as a function of heat treatment time with an inflection point between 120 and 240 hours of sensitization time, while the incubation time decreases monotonically with sensitization time. Additionally, fracture surfaces investigated by scanning electron microscopy demonstrated characteristics of intergranular cracking with multiple crack tips. Discussion centers on the evidence supporting anodic dissolution of β-phase grain boundary precipitates as a primary mechanism of SCC in severely sensitized AA5083 alloy and the potential contribution of hydrogen embrittlement in the failure of grain boundary ligaments between β-phase grain boundary precipitates in less severely sensitized conditions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

References

  1. J.E. Hatch: Aluminum: Properties and Physical Metallurgy, ASM INTERNATIONAL, Metals Park, OH, 1984, pp. 351–78.

    Google Scholar 

  2. D.O. Sprowls and R.H. Brown: in Fundamental Aspects of Stress Corrosion Cracking, Conf. Proc., R.W. Staehle and A.J. Froty, eds., NACE, Houston, TX, 1969, pp. 466–512.

  3. R.H. Jones, D.R. Baer, M.J. Danielson, and J.S. Vetrano: Metall. Mater. Trans. A, 2001, vol. 32A, pp. 1699–1711.

    Article  CAS  Google Scholar 

  4. R.H. Jones, J.S. Vetrano, and C.F. Windisch, Jr.: Corrosion, 2004, vol. 60, pp. 1144–54.

    Article  CAS  Google Scholar 

  5. R.H. Jones, V.Y. Gertsman, J.S. Vetrano, and C.F. Windisch, Jr.: Scripta Mater., 2004, vol. 50, pp. 1355–59.

    Article  CAS  Google Scholar 

  6. T.B. Massalski, J.L. Murray, L.H. Bennett, and H. Baker: Binary Alloy Phase Diagrams, ASM INTERNATIONAL, Metals Park, OH, 1984, vol. 1, pp. 129–31.

  7. E.H. Dix, Jr., W.A. Anderson, and M.B. Shumaker: Corrosion, 1959, vol. 15, pp. 19–26.

    Google Scholar 

  8. R. Braun and T. Hack: Mater. Sci. Forum, 1996, vols. 217–222, pp. 1635–40.

    Article  Google Scholar 

  9. J.C. Chang and T.H. Chuang: Metall. Mater. Trans. A, 1999, vol. 30A, pp. 3191–99.

    Article  CAS  Google Scholar 

  10. M.C. Carroll, P.I. Gouma, M.J. Mills, G.S. Daehn, and B.R. Dunbar: Scripta Mater., 2000, vol. 42, pp. 335–40.

    Article  CAS  Google Scholar 

  11. R.G. Buchheit, R.K. Boger, M.C. Carroll, R.M. Leard, C. Paglia, and J.L. Searles: J. Miner. Met. Mater. Soc., 2001, vol. 53, pp. 29–36.

    CAS  Google Scholar 

  12. J.L. Searles, P.I. Gouma, and R.G. Buchheit: Metall. Mater. Trans. A, 2001, vol. 32A, pp. 2859–67.

    Article  CAS  Google Scholar 

  13. J.L. Searles, P.I. Gouma, and R.G. Buchheit: Mater. Sci. Forum, 2002, vols. 396–402, pp. 1437–42.

    Article  Google Scholar 

  14. A. Barbucci, P.L. Cabot, G. Bruzzone, and G. Cerisola: J. Alloys Compd., 1998, vol. 268, pp. 295–301.

    Article  CAS  Google Scholar 

  15. F.S. Bovard: Corrosion in Marine and Saltwater Environments II, Electrochemical Society Proc., D.A. Shifler, T. Tsuru, P.M. Natishan, and S. Ito, eds., The Electrochemical Society, Inc., Pennington, NJ, 2005, vols. 2004–2014, pp. 232–43.

  16. I.N.A. Oguocha, O.J. Adigun, and S. Yannacopoulos: J. Mater. Sci., 2008, vol. 43, pp. 4208–14.

    Article  CAS  Google Scholar 

  17. S. Badirujjaman, X.W. Li, and M. Winning: Mater. Sci. Eng. A, 2007, vol. 448, pp. 242–48.

    Article  Google Scholar 

  18. R. Goswami, G. Spanos, P.S. Pao, and R.L. Holtz: Mater. Sci. Eng. A, 2010, vol. 527, pp. 1089–95.

    Article  Google Scholar 

  19. M. Francon: Progress in Microscopy, Row, Peterson, and Company, New York, 1961, pp. 94–128.

    Google Scholar 

  20. M. Spencer: Fundamentals of Light Microscopy, Cambridge University Press, New York, NY, 1982, pp. 54–60.

    Google Scholar 

  21. M. Popovic and E. Romhanji: Mater. Sci. Eng. A, 2008, vol. 492, pp. 460–67.

    Article  Google Scholar 

  22. Annual Book of ASTM Standards 2006, vol. 03.02, ASTM International, Philadelphia, PA, 2006, pp. 684–93.

  23. Annual Book of ASTM Standards 2006, vol. 03.01, ASTM International, Philadelphia, PA, 2006, pp. 64–87.

  24. Metals Handbook, vol. 2, Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM INTERNATIONAL, Metals Park, OH, 1990, pp. 29–61.

Download references

Acknowledgments

The technical skills of Mr. Stephen R. Robinson, who prepared samples and took the photographs, are very much appreciated. The research was supported by the Office of Naval Research under Grant No. N00014–07–1-0554, Dr. A.K. Vasudevan, Scientific Officer.

Author information

Authors and Affiliations

  1. Mechanical Engineering Department, University of Rochester, Rochester, NY, 14627, USA

    Jie Gao (Graduate Student) & David J. Quesnel (Professor)

Authors
  1. Jie Gao
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. David J. Quesnel
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Jie Gao.

Additional information

Manuscript submitted October 23, 2009.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Gao, J., Quesnel, D.J. Enhancement of the Stress Corrosion Sensitivity of AA5083 by Heat Treatment. Metall Mater Trans A 42, 356–364 (2011). https://doi.org/10.1007/s11661-010-0375-3

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11661-010-0375-3

Keywords

Search

Navigation