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Mechanism of localized corrosion of aluminum–silicon carbide composites in a chloride containing environment

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Abstract

In marine environments, more pits develop on SiC reinforced aluminum alloy composites than on their unreinforced counterparts. Although it has been suggested that the SiC plays an active role in composite corrosion by fostering the initiation of pits, this fact has not been conclusively demonstrated. The present paper considers data of two independent investigations concerning the effects of alloy type, and heat treatment on pit initiation in SiC reinforced aluminum composites. For four alloys, it is shown that pit initiation is dependent on the alloy type and heat treatment. Further, microscopic observations show that pit initiation sites are correlated with secondary phase particles. Results suggest that secondary phases, rather than the SiC particles, contribute to the pitting behavior of the composites.

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References

  1. S. J. Clesiak, Alcoa, Alloy 6013, Green Letter No. 225, 1987.

  2. D. Skluzak and Y. Tajima. Alcoa, Report No. 90059, 1988.

  3. R. C. Paciej and V. S. Agarwala, Naval Aircraft Development Centre, Report NADA 87029-60, 1981.

  4. A. H. McIntyre, S. Golledge and R. Conrad, Naval Surface Warfare Centre, Report NSNC, TR, 1987-P 87-326.

  5. Z. Ahmad and B. J. Aleem, Corrosion 52(11) (1996).

  6. A. L. Geiger and J. A. Walker, JOM 43(8) (1991) 815.

    Google Scholar 

  7. P. P. Trzaskoma, E. McCafferty and C. R. Rowe, J. Electrochem Soc. 130 (1983) 1804.

    Google Scholar 

  8. E. McCafferty, P. P. Trzaskoma and P. M. Natishan, “Advances in Localized Corrosion” (NACE, Houston, U.S.A) (1990) p. 181.

    Google Scholar 

  9. Z. Ahmad, KACST, Dhahran, KSA, KACST Project # AR-14-65. Progress Report No. 2, 1996.

  10. A.S.T.M, Annual Book of Standards, Recommended practice, G-61, Vol. 8-03, 1992.

  11. Z. Ahmad and A. Aleem, KACST, Dhahran, KSA, KACST project # AR-14-65, Progress Report No. 5, 1996.

  12. M. Vogelsang, R. J. Aresenault and R. M. Fisher, Metallurgical Transactions, 17A (1986) 376.

    Google Scholar 

  13. J. C. M. Mcyntre, R. K. Conrad and S. L. Golledge, Corrosion 46 (1990) 902.

    Google Scholar 

  14. P. P. Trzaskoma, Corrosion 6(403) (1990).

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Authors and Affiliations

  1. King Fahd University of Petroleum & Minerals, KFUPM, Box # 1748, Dhahran-, 31261, Saudi Arabia

    Z. Ahmad

  2. Naval Research Laboratory, Washington, D.C, 20375-5343, USA

    P. T. Paulette

  3. King Fahd University of Petroleum & Minerals, KFUPM, Box # 590, Dhahran-, 31261, Saudi Arabia

    B. J. A. Aleem

Authors
  1. Z. Ahmad
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  2. P. T. Paulette
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  3. B. J. A. Aleem
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Ahmad, Z., Paulette, P.T. & Aleem, B.J.A. Mechanism of localized corrosion of aluminum–silicon carbide composites in a chloride containing environment. Journal of Materials Science 35, 2573–2579 (2000). https://doi.org/10.1023/A:1004767113052

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  • DOI: https://doi.org/10.1023/A:1004767113052

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