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Structural Disintegration of Al 2024 Rolled Plates in a Marine Environment: Effect of Morphological Parameters of the Microstructure
Last modified: 2013-05-03
Abstract
The exfoliation corrosion (EC) is a well known degradation mode of several
aluminum alloys, strongly dependent on aging conditions and on morphological
parameters of the microstructure. It occurs exclusively in microstructures
composed of plate-like or fibrous grains, typical for rolled plates and sheets. It
consists in an intense corrosion (inter- or transgranular) with propagation paths
parallel to the rolling surface, followed by the material disintegration through
'exfoliation' (Fig. 1).
aluminum alloys, strongly dependent on aging conditions and on morphological
parameters of the microstructure. It occurs exclusively in microstructures
composed of plate-like or fibrous grains, typical for rolled plates and sheets. It
consists in an intense corrosion (inter- or transgranular) with propagation paths
parallel to the rolling surface, followed by the material disintegration through
'exfoliation' (Fig. 1).
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