Title

Corrosion behavior of non-equilibrium Zr-Sn-Nb-Fe-Cu-O alloys in high-temperature 0.01M LiOH aqueous solution and degradation of the surface oxide films

Document Type

Journal Article

Publisher

Elsevier Ltd

School

School of Engineering

RAS ID

26721

Comments

Originally published as : Chen, L. Y., Shen, P., Zhang, L., Lu, S., Chai, L., Yang, Z., & Zhang, L. C. (2018). Corrosion behavior of non-equilibrium Zr-Sn-Nb-Fe-Cu-O alloys in high-temperature 0.01 M LiOH aqueous solution and degradation of the surface oxide films. Corrosion Science, 136, 221-230. Article can be found here

Abstract

This work uses qualitative analyses to investigate the corrosion behavior of two non-equilibrium Zr-Sn-Nb-Fe-Cu-O alloys in 0.01 M LiOH aqueous solution at 360 °C/18.6 MPa. Precipitates of second-phase particles (SPPs) and local recrystallization in the matrix are observed near the oxide/metal interface during extended periods of corrosion. Oxides formed on both alloys exhibit different hardness and gradually degrade. The oxides embedded with more SPPs show a lower hardness and therefore break down earlier. The variations of non-equilibrium microstructures of the substrates influence the properties of the oxides, thereby determining the corrosion performance of the alloys.

DOI

10.1016/j.corsci.2018.03.012

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