期刊
ANTI-CORROSION METHODS AND MATERIALS
卷 69, 期 6, 页码 603-610出版社
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/ACMM-04-2022-2648
关键词
TiZr-based alloy; Microstructural evolution; Immersion test; Corrosion behavior
资金
- China Postdoctoral Science Foundation [2021M700490]
- Beijing Postdoctoral Research Foundation [2021-ZZ-075, 2022-ZZ-057]
This study investigates the influence of Zr content on the immersion and electrochemical corrosion behavior of Zr-containing Ti-based alloys (TiZr). It reveals that a high amount of Zr can alleviate corrosion, but pitting corrosion occurs when the Zr content reaches 40 Wt.%. Additionally, the corrosion resistance of TiZr alloys improves with increasing Zr content.
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 T chi ZAB 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.
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