Details

Autor(en) / Beteiligte

• Ferreira, E.S
• Giacomelli, C
• Giacomelli, F.C
• Spinelli, A

Titel

Evaluation of the inhibitor effect of l-ascorbic acid on the corrosion of mild steel

Ist Teil von

• Materials chemistry and physics, , Vol.83 (1), p.129-134

Ort / Verlag

Elsevier B.V

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The influence of l-ascorbic acid (AA) on mild steel corrosion in pH=2–6 solutions was investigated using electrochemical and weight loss techniques. Optical microscopic analyses provided the surface condition. The maximum inhibitor efficiency has been found in 10 −3 mol dm −3 AA, pH=4, solutions (69%). In these conditions, AA acts as a mixed-type inhibitor. Activation energies of 49.4 and 65.7 kJ mol −1 for the corrosion processes were observed in absence and presence of AA, respectively. The AA inhibitor effect could also be evidenced by surface optical images.