Abstract
The corrosion behaviors of Cr-coated zirconium alloy (Zr-0.9 Nb) tube were investigated in 70 ppm Li and 3.5 ppm Li+ 1000 ppm B aqueous solutions at 360 °C/18.6 MPa by static autoclave tests, respectively. Results show that Cr coating improves the corrosion resistance of Zr-0.9 Nb under LiOH and Li+B conditions. The corrosion products of Cr coating were Cr2O3 and Cr(OH)3, while the Cr2O3 was more easily transformed into Cr(OH)3 under LiOH conditions. Some of the Cr(OH)3 dissolved in the late stage of corrosion, resulting in the thinning of the oxide film. Data availabilityThe raw/processed data required to reproduce these findings cannot be shared at this time due to technical or time limitations.
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