Comparative study of the corrosion behavior of the high strength steel after thermal and thermomechanical treatments

Type : Article de conférence
Auteur(s) :  D Berdjane, B Maalem, O Ghelloudj, A Gharbi, L Tairi, S Djemili
Année :  2020
Domaine : Sciences des matériaux
Conférence: Academics Syndicate International Conference for Pure and Applied Sciences (IICPS), 5 Décembre 2020
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  HSLA grade steel X80, corrosion, structure, thermomechanical treatment.

Résumé : 

The corrosion behaviour of X80 steel samples rolled and other quench-tempered in 3.5% NaCl have been studied. Optical microscopy, scanning electron microscopy, potentiodynamic polarization tests and electrochemical impedance measurements are the techniques used to characterize the samples. The results show that the tempered steel has a low corrosion current density compared to the rolled steel. The impedance measurements show the presence of a single capacitive loop attributed to the load transfer phenomenon.