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Study of Corrosion Behavior of Cu-Cr Alloy in 3.5% NaCl Solution

Jianhua Liu, Gao Yue-min, Xiang‐Qian Zhang, Qian Jian-ming, Yao Hui-jun

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Abstract

The corrosion behavior of Cu-Cr alloy in 3.5% NaCl solution is studied by means of metallography,XRD,SEM/EDX and electrochemical methods.The results show that the main corrosion products are CuO,Cu_2O and oxide of chromium.The higher the temperature,the faster the corrosion.When the temperature is at 20℃ and the anode is polarized,and Cu-Cr alloy is passivated,the passivation rate tends to be slower with the temperature increase.

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What this paper is about

The corrosion behavior of Cu-Cr alloy in 3.5% NaCl solution is studied by means of metallography,XRD,SEM/EDX and electrochemical methods.The results show that the main corrosion products are CuO,Cu_2O and oxide of chromium.The higher the temperature,the faster the corrosion.When the temperature is at 20℃ and the anode is polarized,and Cu-Cr alloy is passivated,the passivation rate tends to be slower with the temperature increase.

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Available abstract

The corrosion behavior of Cu-Cr alloy in 3.5% NaCl solution is studied by means of metallography,XRD,SEM/EDX and electrochemical methods.The results show that the main corrosion products are CuO,Cu_2O and oxide of chromium.The higher the temperature,the faster the corrosion.When the temperature is at 20℃ and the anode is polarized,and Cu-Cr alloy is passivated,the passivation rate tends to be slower with the temperature increase.

Key concepts: Alloy, Passivation, Corrosion, Materials science, Metallurgy, Chromium, Metallography, Oxide

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