Corrosion behavior of high-performance crystalline CuCrZr/amorphous CuZrAl composites in NaCl solution

The corrosion mechanism of Cu-based crystalline/amorphous composites in NaCl solution is investigated. xCuCrZr/(1–x)CuZrAl (x = 10, 50, 90 wt%) crystalline/amorphous composites with excellent interfacial bonding are fabricated by ball milling and spark plasma sintering (SPS) processes. According to...

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Bibliographic Details
Published in:Journal of materials research and technology 2022-11, Vol.21, p.5004-5017
Main Authors: Bao, Weizong, Xiang, Tao, Chen, Jie, Du, Peng, Zhang, Zongwei, Xie, Guoqiang
Format: Article
Language:English
Subjects:
Corrosion behavior
Crystalline/amorphous composites
NaCl solution
Spark plasma sintering
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Summary:The corrosion mechanism of Cu-based crystalline/amorphous composites in NaCl solution is investigated. xCuCrZr/(1–x)CuZrAl (x = 10, 50, 90 wt%) crystalline/amorphous composites with excellent interfacial bonding are fabricated by ball milling and spark plasma sintering (SPS) processes. According to the findings of electrochemical testing and immersion experiments, composites containing 50% amorphous CuZrAl exhibit the lowest corrosion rate. In-depth behavioral analysis reveals that uniform corrosion dominates the crystalline CuCrZr phase, while pitting corrosion dominates the amorphous CuZrAl phase. The corrosion model of the composites is constructed to disclose corrosion processes at various phases as well as the kinetic mechanisms that govern individuals.
ISSN:2238-7854
DOI:10.1016/j.jmrt.2022.11.104