Effect of Chromium on Mechanical Properties and Corrosion Behavior of Copper–Nickel Alloy
Copper-nickel alloys are widely applied in marine engineering due to their excellent mechanical properties and corrosion resistance. This study investigates the effect of chromium (Cr) on the erosion-corrosion behavior of copper-nickel alloys through erosion-corrosion experiments. The results indicate that the alloy containing Cr exhibits enhanced erosion-corrosion resistance. The addition of Cr reduces the corrosion rate of the copper-nickel alloy from 0.206 mm/a to 0.060 mm/a. This improvement in corrosion resistance is mainly attributed to the formation of (Ni/Fe)<sub>3</sub>Cr phases, which enhance the alloy's strength and further improve its erosion resistance. Furthermore, Cr increases the electrochemical resistance of the corrosion products.
Authors
- Haofeng Xie (ORCID: https://orcid.org/0000-0002-4832-6400)
- Hongqian Wang
- Dongli Yue (ORCID: https://orcid.org/0000-0002-4722-5325)
- Yicheng Cao
- Hao Chu
- Wenjing Zhang (ORCID: https://orcid.org/0000-0002-2528-9176)
- Zhen Yang (ORCID: https://orcid.org/0009-0009-4403-7626)
- Yuan Fu Yi
Institutions
- General Research Institute for Nonferrous Metals (China) (CN)
- Grinm Advanced Materials (China) (CN)
Publication Details
- Journal
- Materials
- Published
- 2025-04-15
- DOI
- https://doi.org/10.3390/ma18081799
- Citations
- 2
- Primary Topic
- Corrosion Behavior and Inhibition
- Type
- article
- Field-Weighted Citation Impact
- 1.04
Funders
- Natural Science Foundation of Beijing Municipality
- Beijing Nova Program