Abstract
An electrochemical method for the extraction of precipitates from age-hardenable aluminium alloys has been developed. Small anodic currents of ∼10mAcm−2 are applied to samples suspended in a methanolic electrolyte containing benzoic acid, oxine, and chloroform. An analysis of extractions made using different current densities shows that the principal function of the anodic current is to break down the aluminium oxide film. The method should have considerable application in the study of high strength aluminium alloys.
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References
A. Guinier, Nature 142 (1938) 569.
G. D. Preston, ibid 142 (1948) 470.
G. V. Raynor and W. Hume-Rothery, J. Inst. 69 (1943) 415.
B. A. Smith and J. Nutting, Brit. J. Appl. Phys. 7 (1956) 214.
G. R. Booker and J. Norbury, ibid 8 (1957) 109.
K. Kawamura, S. Watanabe, and T. Suzuki, J. Iron Steel Inst. Japan 58 (1972) 2067.
H. J. Beattie, Jun. and W. G. Hagel, Trans. Met. Soc. AIME 221 (1961) 28.
O. H. Kriege and C. P. Sullivan, Trans. ASM 61 (1968) 278.
W. Von Schuffenhauer and W. Förster, Neue Hütte 16 (12) (1971) 756.
O. H. Kriege and J. M. Baris, Trans. ASM 62 (1969) 195.
M. J. Donachie, Jun. and O. H. Kriege, J. Materials 7 (1972) 269.
H. Hughes, J. Iron Steel Inst. 204 (1966) 804.
S. Wakamatsu, J. Iron Steel Inst. Japan 55 (1969) 1359.
F. Honda and K. Hirokawa, Z. Anal. Chem 262 (3) (1972) 170.
F. H. Cocks, J. Mater. Sci. 7 (1972) 771.
D. Stockdale, J. Inst. Metals 52 (1933) 111.
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Cocks, F.H., Shepard, M.L. & Chilton, H.G. An electrochemical method for the extraction of precipitates from age-hardenable aluminium alloys. J Mater Sci 12, 494–496 (1977). https://doi.org/10.1007/BF00540272
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DOI: https://doi.org/10.1007/BF00540272