Study of The Structure and Corrosion Behavior of Al-15%MoAlloy

Type : Publication
Auteur(s) :  O. GHELLOUDJ, A. GHARBI, K. BOUHAMLA, M. Y. Debili, D. ZELMATI, C. E. RAMOUL, T. CHOUCHANE
Année :  2021
Domaine : Métallurgie
Revue : Journal of Physics: Conference Series
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  corrosion, Al-15%MoAlloy, Electrochemical behavior

Résumé : 

The influence of the addition of molybdenum on the structure and corrosion behaviour of aluminium was studied using optical microscopy, scanning electron microscope (SEM),potentiodynamic polarization and electrochemical impedance spectroscopy. The results showthat the addition of 15%wt molybdenum causes the precipitation of the Al12Mo intermetallic phase which appears in plate form on the αAl matrix. The results of the electrochemical tests show that the addition of molybdenum displaces the corrosion potential of aluminium towards positive values from -699 mV/ECS to -633 mV/ECS and increases the charge transfer resistance from to 4752 Ω.cm2 to 6608 Ω.cm2.