Temperature Dependence of Radiation-Induced Corrosion of Stellite-6 at pH 10.6
36th Annual CNS-CNA Student Conference - 2012 June 12

Presented at:
36th Annual CNS-CNA Student Conference
2012 June 12
Saskatoon, Canada
Session Title:
CNS/CNA Student Conference 2012

Mehran Behazin (University of Western Ontario )
J. Jamie Noël (University of Western Ontario )
J. Clara Wren (University of Western Ontario )


The effect of ?-radiation on the corrosion of Stellite-6 has been studied by characterizing the oxide films formed at 25°C and 150°C at pH25°C 10.6. The effect of oxygen (aerated solution) on the film formation has also been determined at 150°C. Results show that anodic oxidation is highly promoted by irradiation at 150°C, leading to thicker oxide layers and potentially more cobalt dissolution. Surface analysis results indicate that the film formed on Stellite-6 after irradiation in a basic solution at 150°C mainly consists of CoO/Co(OH)2. Dissolved oxygen (aeration) increases the ratio of CoO to Co(OH)2 in the oxide film and the content of CoCr2O4 and Co3O4 in the film.

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