| Titre : | The stress corrosion cracking behaviour of heat-treated Al–Zn–Mg–Cu alloy in modified salt spray fog testing (2010) |
| Auteurs : | J. Oñoro, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Materials and corrosion (Vol. 61 N° 2, Fevrier 2010) |
| Article en page(s) : | pp. 125–129 |
| Note générale : | Génie mécanique |
| Langues : | Anglais |
| Tags : | 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 |
