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Título

Stress corrosion cracking behaviour of 8090 Al-Li alloy at 313 K. The effect of grain structure

Autor Conde, A. ; Damborenea, Juan de
Palabras clave Stress corrosion
Aluminium
Slow strain rate
Fecha de publicación 1999
EditorElsevier
Citación Corrosion Science 41: 1079-1088 (1999)
ResumenThe effect of temperature on the stress corrosion cracking (SCC) behaviour of an 8090 aluminium-lithium alloy has been studied by means of the slow strain rate technique (SSRT) at 10-7 s-1. The tests were carried out in an aqueous solution of 1 M NaCl +0.3% H2O2 at 295 and 313 K. The stress was applied in the LT direction. It was found that at both temperatures, the fracture occurred due to a SCC process with similar crack propagation rates. Results of the experimental crack propagation rates are compared with the theoretical values predicted according to the anodic dissolution and surface mobility models, in an attempt to find the SCC susceptibility for this aluminium alloy, which possesses a highly directional grain structure. | The effect of temperature on the stress corrosion cracking (SCC) behaviour of an 8090 aluminum-lithium alloy has been studied by means of the slow strain rate technique (SSRT) at 10-7s-1. The tests were carried out in an aqueous solution of 1 M NaCl +0.3% H2O2 at 295 and 313 K. The stress was applied in the LT direction. It was found that at both temperatures, the fracture occurred due to a SCC process with similar crack propagation rates. Results of the experimental crack propagation rates are compared with the theoretical values predicted according to the anodic dissolution and surface mobility models, in an attempt to find the SCC susceptibility for this aluminum alloy, which possesses a highly directional grain structure.
URI http://hdl.handle.net/10261/87765
DOI10.1016/S0010-938X(98)00152-8
Identificadoresdoi: 10.1016/S0010-938X(98)00152-8
issn: 0010-938X
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