A Positron Annihilation Study of Corrosion of Aluminum and Aluminum Alloy by NaOH

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• 作者：Y. C. Wu (1)
  T. Zhai (2) tzhai@engr.uky.edu
  P. G. Coleman (3)
• 刊名：Metallurgical and Materials Transactions A
• 出版年：2012
• 出版时间：August 2012
• 年：2012
• 卷：43
• 期：8
• 页码：2823-2831
• 全文大小：765.3 KB
• 参考文献：1. L.L. Shreir, R.A. Jarman, and G.T. Burstain: Corrosion: Metal/Environmental Reactions, Butterworth Heinemann, 1994, 3rd ed., vol. 1, pp. 2–73.
  2. A. Dupaquier and A.J. Mills, Jr.: Positron Spectroscopy of Solids, IOS Press, Amsterdam, 1995, pp. 443–752.
  3. K.G. Lynn and R.J. Schultz: Appl. Phys. A, 1985, vol. 37, pp. 31–36.
  4. A. Dupasquier, G. K枚gel, and A. Somoza: Acta Mater., 2004, vol. 52, pp. 4707–26.
  5. P.J. Schutz and K.G.Lynn (1988) Rev. Mod. Phys. 68: 701–79.
  6. K.R. Hebert, T. Gessmann, K.G. Lynn, and P. Asoka-Kumar: J. Electrochem. Soc., 2004, vol. 151, pp. B22–B26.
  7. H. Wu, K.R. Hebert, T. Gessmann, and K.G. Lynn: J. Electrochem. Soc., 2002, vol. 149, pp. B108–B116.
  8. S. Adhikari, L.S. Chumbley, H. Chen, Y.C. Jean, A.C. Geiculescu, A.C. Hillier, and K.R. Hebert: Electrochimica Acta, 2010, vol. 55, pp. 6093–6100.
  9. Y.C. Wu, Y.Q. Chen, B. Wang, S.J. Wang, Y.C. Jean, R. Suzuki, and T. Ohdaira: Appl. Surf. Sci., 2006, vol. 252, pp. 3274–77.
  10. Y.C. Wu, R. Zhang, H. Chen, Y. Li, J. Zhang, and Y.C. Jean: Rad. Phys. Chem., 2003, vol. 68, pp. 599–603.
  11. H.M. Obispo, L.E. Murr, and R.M. Arrowood (2000) J. Mater. Sci. 35: 3479–95.
  12. R.L. Cervantes, L.E. Murr, and R.M. Arrowood: J. Mater. Sci., 2001, vol. 36, pp. 4079–88.
  13. Y. Liu, M.A. Arenas, S.J. Garcia-Vergara, T. Hashimoto, P. Skeldon, G.E. Thompson, H. Habazaki, P. Bailey, and T.C.Q. Noakes: Corros. Sci., 2008, vol. 50, pp. 1475–80.
  14. Y. Liu, A.M. Arenas, P. Skeldon, G.E. Thompson, H. Habazaki, K. Shimizu, P. Bailey, and T.C.Q. Noakes: Corros. Sci., 2006, vol. 48, pp. 1874–84.
  15. M. Bethencourt, F.J. Botana, M.J. Cano, M. Marcos, J.M. S谩nchez-Amaya, and L. Gonzalez-Rovira: Corros. Sci., 2009, vol. 51, pp. 518–24.
  16. X.F. Yu, X.Y. Wen, Y.M. Zhao, and T. Zhai: Mater. Sci. Eng. A, 2005, vol. 394, pp. 376–84.
  17. A. van Veen, H. Schut, and P.E. Mijnarends: Positron Beams and Their Applications, P.G. Coleman, ed., World Publishing Co., Singapore, 2000, pp. 191–225.
  18. R.W. Siegel: Annu. Rev. Mater. Sci., 1980, vol. 10, pp. 393–425.
  19. A. van Veen, H. Schut, M. Clement, J.M.M. de Nijs, A. Kruseman, and M.R. IJpma: Appl. Surf. Sci., 1995, vol. 85, pp. 216–24.
  20. X. Wu and K.R. Hebert: J. Electrochem. Soc., 1996, vol. 143, pp. 83–91.
  21. K.R. Huang, T. Hebert, T. Gessmann, and K.G. Lynn: J. Electrochem. Soc., 2004, vol. 151, pp. B227–B232.
  22. C.E. Caicedo-Martinez, E. Koroleva, O. Skeldon, G.E. Thompson, G. Hoellrigl, P. Bailey, T.C.Q. Noakes, H. Habazaki, and K. Shimizu: J. Electrochem. Soc., 2002, vol. 149, pp. B139–B145.
  23. S. Garcia-Vergara, P. Skeldon, G.E. Thompson, P. Bailey, T.C.Q. Noakes, H. Habazaki, and K. Shimizu: Appl. Surf. Sci., 2003, vol. 205, pp. 121–27.
  24. C.E. Caicedo-Martinez, E.V. Koroleva, G.E. Thompson, P. Skeldon, K. Shimizu, G. Hoellrigl, C. Campbell, and E. McAlpine: Corros. Sci., 2002, vol. 44, pp. 2611–20.
• 作者单位：1. Hubei Nuclear Solid Physics Key Laboratory, School of Physics and Technology, Wuhan University, Wuhan, 430072 P.R. China2. Chemical and Materials Engineering Department, University of Kentucky, Lexington, KY 40506-0046, USA3. Department of Physics, University of Bath, Bath, BA2 7AY United Kingdom
• ISSN：1543-1940

文摘

Corrosion of fully-annealed pure aluminum and a continuous-cast AA2037 aluminum alloy (solutionized and water quenched) in a 1M NaOH solution for various periods of time were analyzed with positron beam-based Doppler broadening spectroscopy. By varying the energy of the incident positron beam, corrosion-induced defects at different depths from the surface were detected. It was found that the Doppler-broadened annihilation line-width parameter was significantly increased near the surface of pure aluminum after corrosion, probably due to the interaction between positrons and nanometer-sized voids formed near the aluminum surface during corrosion. Examination by atomic force microscopy indicated that many pits were formed on the aluminum surface after corrosion. In contrast, a significant decrease in the line-width parameter was observed in AA2037 alloy after corrosion and interpreted as being caused by copper enrichment at the metal-oxide interface during corrosion; such enrichment at large cavity sites was confirmed by energy dispersion spectrometry.