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Microstructural study of a high-strength stress-corrosion resistant 7075 aluminium alloy

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Abstract

A heat-treatment procedure providing for enhanced stress-corrosion cracking resistance without any sacrifice of yield strength in 7075 aluminium alloy is investigated using transmission electron microscopy. It is suggested that the heat treatment (known as retrogression and re-ageing) provides for large grain-boundary precipitates and coherent matrix precipitates. The latter provides for the high strength levels while the grainboundary precipitates provide for enhanced stress-corrosion cracking resistance. A hydrogen embrittlement mechanism of stress-corrosion cracking is assigned to this alloy system.

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References

  1. B. M. Cina, US Patent 3856584, 24 December (1974).

  2. W. Wallace, J. C. Beddoes andM. C. Demalherbe,Canad. Aeronout. Space Inst. 27 (1981) 222.

    Google Scholar 

  3. L. Christodoulou andH. M. Flower,Acta Metall. 28 (1980) 481.

    Google Scholar 

  4. G. M. Pressouyre andI, M. Bernstein,ibid. 27 (1979) 89.

    Google Scholar 

  5. G. M. Pressouyre,ibid. 28 (1980) 895.

    Google Scholar 

  6. G. M. Pressouyre andI. M. Bernstein,Met. Trans. 9A (1978) 1571.

    Google Scholar 

  7. G. M. Scamans, R. Alani andP. R. Swann,Corros. Sci. 16 (1976) 443.

    Google Scholar 

  8. R. Alani andP. R. Swann,Br. Corros. J. 12 (2) (1977) 80.

    Google Scholar 

  9. G. M. Scamans,J. Mater. Sci. 13 (1978) 27.

    Google Scholar 

  10. M. F. Ashby andL. M. Brown,Phil. Mag. 8 (1963) 1083.

    Google Scholar 

  11. A. J. Kumnick andH. H. Johnson,Acta Metal. 28 (1980) 33.

    Google Scholar 

  12. W. R. Wampler, T. Schober andB. Lengeler,Phil. Mag. 34 (1976) 129.

    Google Scholar 

  13. G. W. Greenwood, A. J. E. Foreman andD. E. Rimmer,J. Nucl. Mater. 4 (1959) 305.

    Google Scholar 

  14. W. M. Robertson,Met. Trans. 10A (1979) 489.

    Google Scholar 

  15. B. B. Rath andI. M. Bernstein,ibid. 2 (1972) 2845.

    Google Scholar 

  16. R. Gest andA. R. Troiano, Proceedings of the International Congress on Hydrogen in Metals, 29 May–2 June 1972 (Editions Science et Industrie, Paris, 1972) p. 427.

    Google Scholar 

  17. E. R. Fuller, Jr, B. R. Lawn andR. M. Thomson,Acta Metal. 28 (1980) 1407.

    Google Scholar 

  18. J. C. Scully, in “Mechanisms of Environment Sensitive Cracking of Materials”, edited by P. R. Swann, F. P. Ford and A. R. C. Westwood (Metals Society, London, 1977) p. 1.

    Google Scholar 

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Authors and Affiliations

  1. National Aeronautical Establishment, National Research Council, KIA OR6, Canada, Ottawa, Ontario, Canada

    K. Rajan, W. Wallace & J. C. Beddoes

Authors
  1. K. Rajan
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  2. W. Wallace
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  3. J. C. Beddoes
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Rajan, K., Wallace, W. & Beddoes, J.C. Microstructural study of a high-strength stress-corrosion resistant 7075 aluminium alloy. J Mater Sci 17, 2817–2824 (1982). https://doi.org/10.1007/BF00644656

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  • DOI: https://doi.org/10.1007/BF00644656

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