Abstract
The sulfuric-chromic acid (FPL) etch is one of the most commonly used surface preparations for adhesive bonding in the aircraft industry. We have determined various electrochemical parameters of 2024T-3 bare aluminum alloy in salt water and in the FPL etch solution as a function of predissolved 2024T-3 bare alloy in the etch bath. In addition, Auger Electron Spectroscopy and Scanning Transmission Electron Microscopy measurements were also performed on both 2024T-3 bare and clad alloy as a function of predissolved 2024T-3 bare alloy in the etch bath. The action of the predissolved alloy in the etch bath is to promote the growth of a thicker, and in some cases, a more porous oxide. Comparisons are made to other work in the literature and suggestions are given regarding the reasons for the increase in durability of adhesively bonded 2024T-3 alloy that was etched in an FPL etch bath containing predissolved alloy.
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References
H.W. Eichner, Forest Products Laboratory Report #1842, Madison, WI, April 1, 1954.
A. W. Bethune, SAMPE J., p. 4 August 1975.
C. J. Aimer, (1973), unpublished data.
D. A. Wangsness, J. Appl. Polym. Sci., Applied Polymer Symposium No 32, 291 (1977).
R. F. Wegman, W. M. Bodnar, M. J. Bodnar and M. J. Barbarisi, SAMPE J, p. 35 (Oct./Nov. 1967 ).
D. E. Packham, in “Aspects of Adhesion-6”, D. J. Alner, Editor, pp. 127–149, CRC Press, Cleveland, 1971.
P. F. A. Bijlmer, Metal Finishing, P. 34 (December 1971).
A. W. Smith, J. Electrochem. Soc, 120, 1551 (1973).
K. E. Weber and G. R. Johnston, SAMPE Quarterly, p. 16 (October 1974).
W. J. Russell and E. A. Garnis, SAMPE Quarterly, p. 5 (April 1976).
T. S. Sun, J. M. Chen, J. D. Venables and R. Hopping, Appl. Surf. Sci., 202 (1978).
J. D. Venables, D. K. McNamara, J. M. Chen, T. S. Sun and R. L. Hopping, Appl. Surf. Sci, 3 88 (1979).
J. M. Chen, T. S. Sun, J. D. Venables, D. K. McNamara and R. L. Hopping, Proc. SAMPE Tech Symp, 24, 1188 (1979).
D. K. McNamara, J. D. Venables, R. L.Hopping and L. Cottrell, Proc. SAMPE Tech. Conf., 13, 666 (9181).
S. P. Kodali, R. C. Curley, L. Cottrell, D. M. Ditchek, D. K. McNamara and J. D. Venables, Proc. SAMPE Tech. Conf., 23, 676 (1981).
K. L. Mittal, Pure Appl. Chem, 52, 1295 (1980).
J. C. McMillan, in “AGARD Lecture Series No. 102”, pp. 7–1 to 7-30, Technical Editing and Reproduction Ltd., Hartford House, London, 1979.
D. A. Jones, Ind. Eng. Chem. Prod. Res. Dev, 11, 12 (1972).
K. J. Vetter, “Electrochemical Kinetics, Theory and Experimental Aspect”, Ch. 3, Academic Press, New York, 1967.
Z. A. Foroulis and M. J. Thubrikar, Electrochimica Acta, 21, 225 (1976).
G. A. Dibari and H. J. Read, Corrosion (NACE), 27, 483 (1971).
J. D. Venables, D. K. McNamara, J. M. Chen, D. M. Ditchek,T. I. Morgen Thaler, T. S. Sun and R. L. Hopping, Proc. SAMPE Tech. Conf., 12, 909 (1980).
K. K. Knock and M. C. Locke, Proc. SAMPE Tech. Conf., 445 (1981).
T. S. Sun, D. K. McNamara, J. S. Ahearn, J. M. Chen and B. M. Ditchek, Appl. Surf. Sci., 5, 406 (1980).
W. T. McCarvill and J. P. Bell, J. Appl. Polym. Sci, 18, 343 (1974).
A. A. Adamson, “Physical Chemistry of Surfaces”, 3rd Edition, p. 461, John Wiley & Sons, New York, 1976.
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© 1983 Plenum Press, New York
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Pocius, A.V. (1983). The Relationship of Sulfuric-Chromic Acid (FPL) Etch Composition to the Surface Properties of 2024T-3 Aluminum Alloy. In: Mittal, K.L. (eds) Adhesion Aspects of Polymeric Coatings. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3658-7_8
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DOI: https://doi.org/10.1007/978-1-4613-3658-7_8
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