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Role of coarse intermetallic particles on the environmentally assisted cracking behavior of peak aged and over aged Al–Zn–Mg–Cu–Zr alloy during slow strain rate testing

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Abstract

Coarse intermetallic particles (larger than 1 μm in size) in Al–Zn–Mg–Cu–Zr (7010) alloy were found to significantly influence the crack initiation of the over aged alloy while not affecting the more susceptible peak aged alloy, when subjected to slow strain rate testing (SSRT) in 3.5% NaCl solution. A detailed study was undertaken to examine the causes of such an observation. The study shows that the galvanic action and/or dealloying of the coarse intermetallic particles are responsible for the crack initiation in the over aged alloy. However, this phenomenon is not seen in the peak aged alloy due to its inherent environmentally assisted cracking (EAC) susceptibility and the consequent failure in shorter duration, before the coarse particles can exert an influence.

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References

  1. Doig P, Flewitt PEJ, Edington JW (1977) Corrosion 33:217

    Article  CAS  Google Scholar 

  2. Puiggali M, Zielinski A, Olive JM, Renauld E, Desjardins D, Cid M (1998) Corros Sci 40:805

    Article  CAS  Google Scholar 

  3. Robinson JS (2000) Mater Sci Forum 331–337:1653

    Article  Google Scholar 

  4. Bobby Kannan M, Raja VS, Raman R, Mukhopadhyay AK (2003) Corrosion 59:881

    Article  CAS  Google Scholar 

  5. Deshais G, Newcomb SB (2000) Mater Sci Forum 331–337:1635

    Article  Google Scholar 

  6. Kaufman MJ, Fink JL (1988) Acta Metall 36:2213

    Article  CAS  Google Scholar 

  7. Mo ZM, Zheng ZQ, Yin DF, Huang BP (1996) Mater Sci Forum 217–222:1299

    Article  Google Scholar 

  8. Ramgopal T, Gouma PI, Frankel GS (2002) Corrosion 58:687

    Article  CAS  Google Scholar 

  9. Bobby Kannan M (2005) Ph.D. Thesis, Indian Institute of Technology Bombay, India

  10. Snogan F, Blanc C, Mannkowski G, Pebere N (2002) Surf Coat Technol 154:94

    Article  CAS  Google Scholar 

  11. Yue TM, Dong CF, Yan LJ, Man HC (2004) Mater Lett 58:630

    Article  CAS  Google Scholar 

  12. Najjar D, Magnin T, Warner TJ (1997) Mater Sci Eng A 238:293

    Article  Google Scholar 

  13. Buchheit RG, Grant RP, Hlava PF, Mckenzie B, Zender GL (1997) J Electrochem Soc 144:2621

    Article  CAS  Google Scholar 

  14. Blanc C, Lavelle B, Mankowski G (1997) Corros Sci 39:495

    Article  CAS  Google Scholar 

  15. Guillaumin V, Mankowski G (1999) Corros Sci 41:421

    Article  CAS  Google Scholar 

  16. Newman RC, Shahrabi T, Sieradzki K (1989) Scripta Metall 23:71

    Article  CAS  Google Scholar 

Download references

Acknowledgements

The authors wish to acknowledge Dr. A. K. Mukhopadhyay, Associate Director, Defence Metallurgical Research Laboratory, Hyderabad, India for providing the materials.

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Authors and Affiliations

  1. Corrosion Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India

    M. Bobby Kannan & V. S. Raja

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  1. M. Bobby Kannan
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  2. V. S. Raja
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Correspondence to V. S. Raja.

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Bobby Kannan, M., Raja, V.S. Role of coarse intermetallic particles on the environmentally assisted cracking behavior of peak aged and over aged Al–Zn–Mg–Cu–Zr alloy during slow strain rate testing. J Mater Sci 42, 5458–5464 (2007). https://doi.org/10.1007/s10853-006-0784-2

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  • DOI: https://doi.org/10.1007/s10853-006-0784-2

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