Effect of Area Ratio on the Galvanic Corrosion of AZX611 Magnesium Alloy/A6N01 Aluminum Alloy Joint

Nakatsugawa, Isao; Chino, Yasumasa

doi:10.2320/matertrans.mt-l2021011

Cited by 7 publications

(3 citation statements)

References 16 publications

(21 reference statements)

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“…In detail, the titanium alloy maintains a consistent cathodic surface area, while the anodic area of carbon steel varies. This variation leads to a fluctuating anodic-to-cathodic area ratio, which is a crucial factor in galvanic corrosion [45][46][47][48]. The electrochemical principle that governs this behavior is based on the fact that the corrosion rate through the galvanic couple is a function of the surface area of both the anode and cathode.…”

Section: Impact Of Thickness Ratio On Corrosion Ratementioning

confidence: 99%

A Study on the Influence of Different Defect Types on the Corrosion Behavior of Q235/TA2 Composite Plates in a Marine Environment

Jiang,

Li,

Wang

et al. 2024

Metals

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The structural design of steel–titanium composite plates significantly affects their corrosion resistance. To investigate the impact of defects of different shapes and sizes on the corrosion behavior of steel–titanium composite plates, this study designed six types of defects and conducted a series of characterization tests. The results showed that due to the galvanic interaction between carbon steel and titanium alloy, small defects initially accelerate corrosion, resulting in 50% to 200% more corrosion weight loss compared to large defects. However, in the later stages of immersion, the corrosion rate of small defects decreased by up to 35%, which was attributed to the accumulation of protective corrosion products. Additionally, there is an inverse relationship between the corrosion rate and the thickness ratio of the composite plate. The reduction in the area of Q345B also results in additional corrosion loss of up to 32%.

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Section: Impact Of Thickness Ratio On Corrosion Ratementioning

confidence: 99%

A Study on the Influence of Different Defect Types on the Corrosion Behavior of Q235/TA2 Composite Plates in a Marine Environment

Jiang,

Li,

Wang

et al. 2024

Metals

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“…It was found that Mg-RE-TM alloy systems containing rare earth elements and transition metal elements with appropriate ratios exhibit excellent mechanical properties. This is mainly attributed to the formation of second phases with a long-period stacked ordered (LPSO) structure in the magnesium alloys [28][29][30]. At present, several LPSO structures have been found, including 10H, 12H, 14H, 15R, 18R, 21R, and 24R LPSO phases, of which 18R and 14H are the most common types [31].…”

Section: Galvanic Corrosionmentioning

confidence: 99%

Corrosion and Protection of Magnesium Alloys: Recent Advances and Future Perspectives

Wu,

Zhang

2023

Coatings

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Magnesium alloys are of significant importance for lightweight manufacturing and weight-saving applications due to their high weight-to-strength ratio and good mechanical properties. However, the poor corrosion resistance of Mg alloys limits their large-scale practical application. An essential theoretical foundation for the development of corrosion-resistant magnesium alloys and their surface protection technologies can be elucidated via the investigation of the corrosion mechanism of the magnesium surface and the alteration of the corrosion rate after surface conversion and coating. This paper discusses some typical corrosion behaviors by originally describing the corrosion mechanism of magnesium alloys with and without different coatings and surface treatments. In order to predict the future theoretical investigation and research directions for the surface protection of magnesium alloys, some techniques and preventative measures to enhance the corrosion resistance of magnesium alloys are reviewed, and these protection techniques are intercompared for better understanding.

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“…Because it uses calculus to transform macroscopic electrochemical parameters into the organic coupling of electrochemical parameters in small areas, it can reflect the differences of electrochemical properties in different areas on the surface of aluminum alloy coupling and can effectively extract the corrosion characteristics and preferred corrosion areas of aluminum alloy galvanic corrosion through analysis. It is of great significance to explore the mechanism and process of complex galvanic corrosion of aluminum alloy [58]. Shi et al [49] used array electrode technology to explore the galvanic corrosion behavior of trimetals and found that the dielectric environment in 3.5 wt.% NaCl solution had a high conductivity, and the spatial arrangement of electrodes had little impact on the galvanic corrosion of trimetals.…”

Section: Wire Beam Electrodes (Wbe) Technologymentioning

confidence: 99%

A Review of Research on Galvanic Corrosion of Aluminum Alloys

Zhu¹,

Leng²,

Jin³

et al. 2023

Fluid Dynamics &Amp; Materials Processing

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When aluminum alloys are coupled with dissimilar materials, they often act as corrosion anodes and are suscepted to accelerated corrosion. Therefore, deepening our knowledge of such corrosion phenomena, related mechanisms, and elaborating new prediction model is of great theoretical and practical significance. In this paper, such mechanisms are explained from both macroscopic and microscopic points of view by considering several aspects such as the second phase particle type, grain size, and environmental ions. More specifically, different perspectives on such a problem are elaborated, which take into account: the properties of the coupling pair materials, geometrical characteristics, environmental media characteristics, the corrosion regularity of different types of aluminum alloys, the influence of area ratio on anode corrosion current density, the interference of the solution primary ions represented by Cl-and the accompanying ions represented by Al 3+ . A review is also conducted of the standard test methods used in the study of aluminum alloys galvanic corrosion and of research methods such as the Wire Beam Electrodes Technology (WBE), the Scanning Kelvin Probe Force Microscopy (SKPFM) technology. Finally, three kinds of inhibition technologies are discussed, including the anodic oxidation treatment, the corrosion inhibitor treatment and the coating protection method.

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Effect of Area Ratio on the Galvanic Corrosion of AZX611 Magnesium Alloy/A6N01 Aluminum Alloy Joint

Cited by 7 publications

References 16 publications

A Study on the Influence of Different Defect Types on the Corrosion Behavior of Q235/TA2 Composite Plates in a Marine Environment

A Study on the Influence of Different Defect Types on the Corrosion Behavior of Q235/TA2 Composite Plates in a Marine Environment

Corrosion and Protection of Magnesium Alloys: Recent Advances and Future Perspectives

A Review of Research on Galvanic Corrosion of Aluminum Alloys

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