BOTELLA, Philippe; FRAYRET, Christine; JASZAY, Th.; DELVILLE, Marie-Hélène

doi:10.1016/S0896-8446(02)00151-1

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BOTELLA, Philippe
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

FRAYRET, Christine
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

JASZAY, Th.
Laboratoire de mécanique des fluides [LMF]

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Journal of Supercritical Fluids. 2003, vol. 25, n° 3, p. 269-278

Elsevier

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This paper presents the behavior of Alloy C-276 and T60 titanium, submitted to anodic polarization under steady-state and quasi-stationary conditions in oxidative chlorinated aqueous media. The measurements were carried out at temperatures and pressures from usual conditions (20 °C, 0.1 MPa) to supercritical conditions (400 °C, 28 MPa). The influence of various parameters such as pH, chloride ions activity, nature of materials, sub or supercritical state of the medium, was investigated. The effect of the temperature gave rise to the determination of activation energies of the dissolution–passivation processes. The hierarchy of the electrochemical behavior of the materials confirmed the results already obtained in a prevoius work using the determination of corrosion rates.< Réduire

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Electrochemistry

Corrosion rate

Nickel-base alloys

Titanium

Anodic ‘current–potential' curves

Supercritical conditions

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Experimental study, via current–potential curves, of the anodic behavior of Alloy C-276 and T60 titanium in chlorinated and oxygenated aqueous media under sub- to supercritical conditions

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