MODIFICATIONS OF MICROSTRUCTURE AND CORROSION RESISTANCE IN AA 2024-T3 BUTT JOINTS

Type : Article de conférence
Auteur(s) :  M. Mokhtari, S. TLILI, N.E BELIARDOUH, A. Boukari
Année :  2010
Domaine : Chimie
Conférence: The 2nd International Conference on welding, nondestructive testing and the industry of materials and alloys (ICWNDT-MI’10)
Lieu de la conférence:  Oran, Algeria
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  welding, Tungsten inert gas, corrosion, polarization curve test, Electrochemical impedance spectroscopy

Résumé : 

An experimental investigation has been carried out, in present paper, on microstructure and corrosion resistance of weld butt of AA 2024-T3. Conventional tungsten inert gas (TIG) welding processes have been considered. Micro-hardness measurements allow pointing out a general decay of mechanical properties of TIG joints, mainly due to high temperature experienced by material. Polarization curve tests and electrochemical impedance spectroscopy, performed in this paper, allow assessing a generalized nobler behavior of weld bead with respect to parent alloy