ا ﺔﻴﺒﻌﺸﻟا ﺔﻴﻃاﺮﻘﻤﻳﺪﻟا ﺔﻳﺮﺋاﺰﺠﻟا ﺔﻳرﻮﻬﻤﺠﻟ
REPUBLIQUE ALGERIENNE DEMOCRATIQUE ET POPULAIRE
ﻲﻤﻠﻌﻟا ﺚﺤﺒﻟا و ﻲﻟﺎﻌﻟا ﻢﻴﻠﻌﺘﻟا ةرازو
MINISTERE DE L’ENSEIGNEMENT SUPERIEUR ET DE LA RECHERCHE SCIENTIFIQUE
Conférence Internationale sur le Soudage, le CND et l’Industrie des Métaux, IC-WNDT-MI’10 Oran, 28 - 30 novembre 2010. Site web : http://www.csc.dz/wcndt-10
Université Saad Dahlab Blida Centre de Recherche Scientifique et Technique en Soudage et Contrôle.
CSC, BP 64 Chéraga, Alger. Tél. /Fax 021 37 18 21 Université Hadj Lakhdar
Batna
MODIFICATIONS OF MICROSTRUCTURE AND CORROSION RESISTANCE IN AA 2024-T3 BUTT JOINTS
M. MOKHTARI1, S.TLILI1, N.E BELIARDOUH2, A. BOUKARI1.
1 Unité De Recherche Appliquée En Sidérurgie et Metallurgie URASM/CSC; Annaba 2 Département de Métallurgie & Génie des Matériaux- Université B. Mokhtar Annaba
Contacting author: madjda.mokhtari @yahoo.fr
Abstract :
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.
Keywords : Welding, Tungsten inert gas, corrosion, polarization curve test, Electrochemical impedance spectroscopy.
