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Influence of Zr content on immersion and electrochemical corrosion behavior of as-cast TiZr alloys

Suli Zhao, Shuguang Liu, Yaqing Liu, Xuan Liu, Kuixue Xu, Chunbao Shi, Qing Jiang

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 9 August 2022

Issue publication date: 13 October 2022

172

Abstract

Purpose

The purpose of this paper is to study the influence of Zr content on immersion and electrochemical corrosion behavior of Zr-containing Ti-based (TiZr) alloys.

Design/methodology/approach

The phase analysis of as-cast TχZAB alloys was carried out using X-ray diffraction. The microstructure of corrosion surfaces of the samples was observed using optical metallographic microscopy and scanning electron microscopy, equipped with energy dispersive spectroscopy.

Findings

The immersion test reveals that the corrosion is alleviated in the presence of a high amount of Zr, whereas pitting corrosion occurs when the Zr content is up to 40 Wt.%. Furthermore, the electrochemical analysis demonstrates that the corrosion resistance TiZr alloys is improved with increasing Zr content.

Originality/value

The TiZr alloys are promising candidates for high-end applications because of their excellent comprehensive properties. These alloys are usually used in marine or other harsh corrosive environments; therefore, it is essential to study their corrosion behavior.

Keywords

Acknowledgements

This work was supported by China Postdoctoral Science Foundation (Grant No. 2021M700490), Beijing Postdoctoral Research Foundation (Grant No. 2021-ZZ-075 and 2022-ZZ-057).

Citation

Zhao, S., Liu, S., Liu, Y., Liu, X., Xu, K., Shi, C. and Jiang, Q. (2022), "Influence of Zr content on immersion and electrochemical corrosion behavior of as-cast TiZr alloys", Anti-Corrosion Methods and Materials, Vol. 69 No. 6, pp. 603-610. https://doi.org/10.1108/ACMM-04-2022-2648

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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