Hydrogen Evolution and Pickup During the Corrosion of Zirconium Alloys PDF Download

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Hydrogen Evolution and Pickup During the Corrosion of Zirconium Alloys

Hydrogen Evolution and Pickup During the Corrosion of Zirconium Alloys PDF Author: S. Yagnik
Publisher:
ISBN:
Category : Corrosion
Languages : en
Pages : 23

Book Description
Electrochemical studies were performed in lithiated water (2.5 ppm Li and 1 ppm dissolved hydrogen) at 315°C in autoclave tests, on Zircaloy-2. Only the outside surface of the cladding was exposed to the environment. Specimens were corroded at open circuit potentials and also with externally imposed constant currents and potentials. The effects of weld regions and of a thin sputtered palladium coating on corrosion potential, the polarization behavior, and hydrogen pickup were investigated. Post-transition oxides were grown in steam at 12.5 MPa and 400°C, and electrochemical measurements were performed at 315°C in the lithiated water. The intrinsic electrochemical coupling effect, inherent in welding Zircaloy components, was also investigated in a loop test. Infrared interferometry and differential scanning calorimetry were used to measure the oxide thickness and hydrogen pickup along the specimen length.
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