Effect of metallurgical factors on initiation of pitting corrosion on aluminum in fresh water

Effect of metallurgical factors on initiation of pitting corrosion on aluminum in fresh water

Various metallurgical factors governing initiation of pitting corrosion were examined by electron microscopy, EPMA, and cathodic polarization measurements. Pits nucleate in the adjacent site of precipitates containing iron and/or silicon. Pits are prone to initiate on the cutting edge rather than on...

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Veröffentlicht in:Journal of Japan Institute of Light Metals 1977/09/30, Vol.27(9), pp.442-449
Hauptverfasser: GOTO, Kenjiro, SHIMIZU, Yoshihiko, ITO, Goro
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Sprache:eng ; jpn
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container_title Journal of Japan Institute of Light Metals
container_volume 27
creator GOTO, Kenjiro
SHIMIZU, Yoshihiko
ITO, Goro
description Various metallurgical factors governing initiation of pitting corrosion were examined by electron microscopy, EPMA, and cathodic polarization measurements. Pits nucleate in the adjacent site of precipitates containing iron and/or silicon. Pits are prone to initiate on the cutting edge rather than on rolled surface of aluminium plate. Scratching has the most remarkable effect on initiation of pitting corrosion. The difference in susceptibility to pitting corrosion between the edge and the rolled surface of aluminum plate is attributed to the scratching effect on the edge surface.
doi_str_mv 10.2464/jilm.27.442
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identifier ISSN: 0451-5994
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1880-8018
language eng ; jpn
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title Effect of metallurgical factors on initiation of pitting corrosion on aluminum in fresh water
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