Abstract

The wedging stresses generated by the formation of insoluble corrosion products have been measured during the exfoliation corrosion of the high strength aluminium alloy L95. Stress intensity values obtained from double cantilever beam experiments, mathematical modelling and from observations of crack opening displacements are discussed with reference to the corrosion process. Exfoliation has effectively been prevented by applying compressive loading and it has been concluded that the degradation occurs by a stress corrosion mechanism.

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