Abstract
The kinetics of intergranular stress corrosion cracks and the relation to the kinetics of intergranular corrosion were studied by foil penetration experiments on AA2024-T3 samples subjected to a uniaxial tensile stress. Samples with various orientations relative to the rolling direction were studied in 1.0 M NaCl at an applied anodic potential. The applied stress increased the rate of penetration relative to the rate for unstressed samples. The penetrated samples were further characterized using X-ray microfocal radiography and optical cross sectioning. The cracks for certain orientations were found to have interesting and unexpected morphologies.
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2001
Association for Materials Protection and Performance (AMPP)
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