Effects of Nickel Additive on Micro-Arc Oxidation Coating of AZ63B Magnesium Alloy

Wang, Zhan; Tang, Feng; Gui, Ouyang; Gui, Boyi

doi:10.1007/s12541-018-0128-6

Cited by 9 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The PBR value of Co 3 O 4 is 1.99 and the PBR value of MgO is 0.99. The PBR value is greater than 1, the pressure stress of the metal oxide coating is protective, so the quality of coating is better [15].…”

Section: Structure and Composition Of Mao Coatingmentioning

confidence: 99%

Effect of CoSO₄ on the characteristics of micro-arc oxidation coatings

Wang

Gong

et al. 2019

Surface Engineering

View full text Add to dashboard Cite

Oxidation coatings were prepared on the surface of AZ31B magnesium alloy by micro-arc oxidation in the electrolytes with CoSO 4 addition varying from 0 to 0.8 g/L. The effects of different concentrations of CoSO 4 on the properties and microstructure of the coating were analysed by Scanning Electron Microscope (SEM), X-ray Photoelectron Spectroscopy (XPS), Xray Diffraction (XRD) and Electrochemical Workstation. The results revealed that the addition of different concentrations of CoSO 4 caused the voltage variation, which resulted in the changes of microstructure, phase composition and element distribution of coatings. Furthermore, it led to the improvement of coating properties. It was found that the oxidation voltage increased firstly and then decreased. Because of CoSO 4 addition, the morphology of the coating was changed. XRD patterns and XPS confirmed that Co 3 O 4 , MgO and Mg 2 SiO 4 were generated. The addition of CoSO 4 could effectively improve the hardness, corrosion resistance and thermal-shock resistance.

show abstract

Section: Structure and Composition Of Mao Coatingmentioning

confidence: 99%

Effect of CoSO₄ on the characteristics of micro-arc oxidation coatings

Wang

Gong

et al. 2019

Surface Engineering

View full text Add to dashboard Cite

show abstract

“…They are among the lightest structural materials in current engineering applications. These alloys find widespread use in various fields, including electronics and telecommunications, automotive transportation, and energy materials [3,4]. Among these, the AZ31B magnesium alloy is particularly notable for its optimal balance of mechanical properties and workability.…”

Section: Introductionmentioning

confidence: 99%

Influence of Anodic Oxidation on the Organizational Structure and Corrosion Resistance of Oxide Film on AZ31B Magnesium Alloy

Kang,

Yan,

et al. 2024

Coatings

View full text Add to dashboard Cite

Magnesium alloys, notably AZ31B, hold promise for lightweight structural applications in the aerospace, automotive, and biomedical sectors due to their excellent strength-to-weight ratios. The broad adoption of these alloys, however, is hindered by their inherent susceptibility to corrosion, reducing durability and functional integrity in corrosive environments. This study explores anodic oxidation as a viable surface treatment to improve the corrosion resistance of the AZ31B magnesium alloy. Focusing on the impact of oxidation voltage on the oxide film’s structural and electrochemical properties, we aim to optimize these characteristics to enhance the alloy’s utility and lifespan significantly. Through detailed analysis of surface and cross-sectional morphologies, film thickness, phase composition, and corrosion resistance, we identify an optimal oxidation voltage of 17.5 V that notably improves the oxide film’s density and corrosion resistance. Through this research, we contribute to the ongoing efforts to overcome the corrosion vulnerability of magnesium alloys, thereby unlocking their full potential in contributing to more sustainable and efficient technological advancements.

show abstract

“…Therefore, corrosion prevention and surface hardening processes are needful for the aluminum and their alloy wares. Plasma electrolytic oxidation (PEO), also known as micro‐arc oxidation (MAO), is an environmentally friendly surface technology allowing the in situ fabrication of oxide coatings with wear and corrosion resistance, bionics, and thermal barrier properties on value metals and on their alloys …”

Section: Introductionmentioning

confidence: 99%

Investigation on corrosion and wear resistance of MgO‐Al₂O₃ composite coating prepared by plasma electrolytic oxidation

Liu

Wang

et al. 2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Ceramic coatings were prepared on 6061 Al alloy in a mixed electrolyte with/without MgO powders at different treatment durations. The results of energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) showed that MgO powder was incorporated into the coatings, and Mg species gradually aggregated into coating inside as prolonging the oxidation time. Scanning electron microscopy (SEM) showed that MgO additive had a certain effect on the microstructures and coating thickness. The corrosion behavior tests evaluated by potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS) in 3.5 wt% NaCl solution suggested that at the same treatment time, the addition of MgO powders can improve the corrosion resistance of the coating, and the Mg-rich layer can affect the corrosion resistance of the coating. The tests of mechanical properties showed that the addition of MgO powders improved the stability and hardness of the coating. K E Y W O R D S corrosion resistance, friction coefficient, MgO, plasma electrolytic oxidation Investigation on corrosion and wear resistance of MgO-Al 2 O 3 composite coating prepared by plasma electrolytic oxidation. Int J Appl Ceram

show abstract

Effects of Nickel Additive on Micro-Arc Oxidation Coating of AZ63B Magnesium Alloy

Cited by 9 publications

References 20 publications

Effect of CoSO₄ on the characteristics of micro-arc oxidation coatings

Effect of CoSO₄ on the characteristics of micro-arc oxidation coatings

Influence of Anodic Oxidation on the Organizational Structure and Corrosion Resistance of Oxide Film on AZ31B Magnesium Alloy

Investigation on corrosion and wear resistance of MgO‐Al₂O₃ composite coating prepared by plasma electrolytic oxidation

Contact Info

Product

Resources

About

Effects of Nickel Additive on Micro-Arc Oxidation Coating of AZ63B Magnesium Alloy

Cited by 9 publications

References 20 publications

Effect of CoSO4 on the characteristics of micro-arc oxidation coatings

Effect of CoSO4 on the characteristics of micro-arc oxidation coatings

Influence of Anodic Oxidation on the Organizational Structure and Corrosion Resistance of Oxide Film on AZ31B Magnesium Alloy

Investigation on corrosion and wear resistance of MgO‐Al2O3 composite coating prepared by plasma electrolytic oxidation

Contact Info

Product

Resources

About

Effect of CoSO₄ on the characteristics of micro-arc oxidation coatings

Effect of CoSO₄ on the characteristics of micro-arc oxidation coatings

Investigation on corrosion and wear resistance of MgO‐Al₂O₃ composite coating prepared by plasma electrolytic oxidation