Investigation of AZ91D Magnesium Alloy Corrosion Behavior under Thin Electrolyte Layer Using Nondestructive Electrochemical Techniques

Nie, Linlin; Xia, Yan; Cao, Fahe

doi:10.1016/s1452-3981(23)15842-1

International Journal of Electrochemical Science

2016

DOI: 10.1016/s1452-3981(23)15842-1

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Investigation of AZ91D Magnesium Alloy Corrosion Behavior under Thin Electrolyte Layer Using Nondestructive Electrochemical Techniques

Linlin Nie

Yan Xia

Fahe Cao

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Cited by 5 publications

References 31 publications

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Corrosion behavior of bronze under organic acid‐containing thin electrolyte layer

Chen¹,

Cai²,

Xiong³

et al. 2018

Materials & Corrosion

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The corrosion process and mechanism of three kinds of bronze materials under organic acid‐containing thin electrolyte layer (TEL) are investigated by electrochemical impedance spectroscopy (EIS) and Tafel polarization curves. It can be seen from the results that the corrosion rate of three specimens under TELs is lower than that in bulk solution. For bare bronze, the corrosion rate increases with the thickness of TEL, while for Cu2O patina bronze and CuCl patina bronze, there exists a critical thickness under TELs where the patina bronze have the maximum corrosion rate. In addition, the results show that Cu2O patina could increase the corrosion resistance, while CuCl patina, as a harmful patina, can accelerate the corrosion process. The principal corrosion products identified on the surface of bare bronze and Cu2O patina bronze are CuO, Cu(OH)2, and Cu(COOH)2, while the principal corrosion products identified on the surface of CuCl patina bronze is Cu2Cl(OH)3.

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Corrosion behavior of bronze under organic acid‐containing thin electrolyte layer

Chen¹,

Cai²,

Xiong³

et al. 2018

Materials & Corrosion

View full text Add to dashboard Cite

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Influences of NH₄⁺ ions and thin electrolyte layers (TEL) thickness on the corrosion behavior of AZ91D magnesium alloy

Liu

et al. 2019

Materials & Corrosion

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In this study, the influences of NH4 + ions and the thin electrolyte layer (TEL) thickness on the corrosion behavior of the AZ9D magnesium alloy in NH4+‐containing environments were investigated by electrochemical measurements and surface characterization. The experimental results indicate that NH4+ greatly accelerates the corrosion of AZ91D magnesium alloy whether in a bulk solution or in a TEL. As the TEL thickness decreasing, the corrosion resistance of the AZ91D magnesium alloy is strengthened. According to the corrosion morphology, electrochemical analysis, and characterization analysis of corrosion products, the corrosion mechanism of AZ91D under TELs with different thicknesses is divided into three stages: (a) uniformly distributed corrosion pits with deep depth and large size when TEL thickness is higher than or equal to 500 μm; (b) slightly corrosion with randomly distributed corrosion pits and the accumulation of small amount of corrosion product when TEL thickness is between 100 μm and 200 μm; (c) no corrosion pit with only deposition of corrosion product when TEL thickness is lower than or equal to 100 μm. Among which, the roles of NH4+, TEL thickness, and corrosion product are emphasized and discussed in the corrosion process of AZ91D magnesium alloy under TEL with different thicknesses.

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Graphite Oxide-Based Coatings on ZK60A Magnesium Alloy: Effect of Chitosan and Silane Coupling Agents on the Corrosion Resistance

Alves,

Criado,

da Silva Pereira

et al. 2024

J. of Materi Eng and Perform

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Investigation of AZ91D Magnesium Alloy Corrosion Behavior under Thin Electrolyte Layer Using Nondestructive Electrochemical Techniques

Cited by 5 publications

References 31 publications

Corrosion behavior of bronze under organic acid‐containing thin electrolyte layer

Corrosion behavior of bronze under organic acid‐containing thin electrolyte layer

Influences of NH₄⁺ ions and thin electrolyte layers (TEL) thickness on the corrosion behavior of AZ91D magnesium alloy

Graphite Oxide-Based Coatings on ZK60A Magnesium Alloy: Effect of Chitosan and Silane Coupling Agents on the Corrosion Resistance

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Investigation of AZ91D Magnesium Alloy Corrosion Behavior under Thin Electrolyte Layer Using Nondestructive Electrochemical Techniques

Cited by 5 publications

References 31 publications

Corrosion behavior of bronze under organic acid‐containing thin electrolyte layer

Corrosion behavior of bronze under organic acid‐containing thin electrolyte layer

Influences of NH4+ ions and thin electrolyte layers (TEL) thickness on the corrosion behavior of AZ91D magnesium alloy

Graphite Oxide-Based Coatings on ZK60A Magnesium Alloy: Effect of Chitosan and Silane Coupling Agents on the Corrosion Resistance

Contact Info

Product

Resources

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Influences of NH₄⁺ ions and thin electrolyte layers (TEL) thickness on the corrosion behavior of AZ91D magnesium alloy