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The stress corrosion cracking behaviour of heat-treated Al–Zn–Mg–Cu alloy in modified salt spray fog testing / J. Oñoro in Materials and corrosion, Vol. 61 N° 2 (Fevrier 2010) 

Public ISBD [article]  in Materials and corrosion > Vol. 61 N° 2 (Fevrier 2010) . - pp. 125–129 Titre : The stress corrosion cracking behaviour of heat-treated Al–Zn–Mg–Cu alloy in modified salt spray fog testing Type de document : texte imprimé Auteurs : J. Oñoro, Auteur Année de publication : 2010 Article en page(s) : pp. 125–129 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : 7075;  aluminium  alloys;  fog  chamber;  RRA;  stress  corrosion  cracking  (SCC) Résumé : The stress corrosion cracking behaviour of 7075 (Al–Zn–Mg–Cu) alloy have been studied in a salt spray fog chamber with two vapourised aqueous solutions (0 and 5% NaCl). The paper analyses the stress corrosion resistance of 7075 aluminium alloy with several precipitation-ageing heat treatments. The results are compared with that obtained in 3.5% NaCl aqueous solution at 20 °C. The salt spray fog testing has permitted a good evaluation of SCC susceptibility in 7075 alloy. All temper conditions studied were susceptible to SCC in the different environments tested. 7075-T6 temper was the most susceptible, while in all the cases studied 7075-T73 temper was the least susceptible. Compared to 7075-T6, 7075-RRA temper improved the resistance against the SCC process, but the mechanical properties obtained were lower. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905255/abstract [article] The stress corrosion cracking behaviour of heat-treated Al–Zn–Mg–Cu alloy in modified salt spray fog testing [texte imprimé] / J. Oñoro, Auteur . - 2010 . - pp. 125–129. Génie mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 61 N° 2 (Fevrier 2010) . - pp. 125–129 Mots-clés : 7075;  aluminium  alloys;  fog  chamber;  RRA;  stress  corrosion  cracking  (SCC) Résumé : The stress corrosion cracking behaviour of 7075 (Al–Zn–Mg–Cu) alloy have been studied in a salt spray fog chamber with two vapourised aqueous solutions (0 and 5% NaCl). The paper analyses the stress corrosion resistance of 7075 aluminium alloy with several precipitation-ageing heat treatments. The results are compared with that obtained in 3.5% NaCl aqueous solution at 20 °C. The salt spray fog testing has permitted a good evaluation of SCC susceptibility in 7075 alloy. All temper conditions studied were susceptible to SCC in the different environments tested. 7075-T6 temper was the most susceptible, while in all the cases studied 7075-T73 temper was the least susceptible. Compared to 7075-T6, 7075-RRA temper improved the resistance against the SCC process, but the mechanical properties obtained were lower. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905255/abstract