Enhanced corrosion and tribocorrosion behavior of plasma electrolytic oxidized coatings on 5052 aluminum alloy with addition of pullulan to silicate electrolyte

Li, Yang; Zhang, Dejian; Qi, Caixia; Xue, Yanhong; Wan, Yong; Sun, Haiou

doi:10.1016/j.jallcom.2023.170782

Cited by 16 publications

(6 citation statements)

References 58 publications

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“…At the end of the experiments, the wear morphology of the samples was characterized by FE-SEM. The track morphology of the wear areas was measured using a stylus-type profilometer (SJ-200, Mitutoyo), and the wear rate was calculated by Equation (1) 27 :…”

Section: Tribocorrosion Testsmentioning

confidence: 99%

Electrochemical corrosion and tribocorrosion behavior of CrN and CrAlN coatings in artificial seawater

Bai,

Li,

Guo

et al. 2024

Int J Applied Ceramic Tech

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This study investigated the corrosion and tribocorrosion behavior of CrN and CrAlN coatings deposited on steel through direct current magnetron sputtering. Additionally, the effects of Al addition on the microstructure, corrosion inhibition, and tribocorrosion behavior of CrN coatings were evaluated. Compared with the CrN coating, the CrAlN coating exhibited a denser columnar crystal structure and a higher hardness of 23.8 GPa. The CrAlN coating reacted with water to form Al2O3 and Cr2O3 films, which enhanced its corrosion resistance. Moreover, the addition of Al enhanced the wear resistance of the CrN coating and reduced the material loss due to corrosion, wear, and their synergistic effects. The CrAlN coating exhibited a low corrosion current density of 1.14 × 10−8 A/cm2, indicating a 92% reduction compared with the CrN coating. Furthermore, under either open circuit potential or anodic accelerated tribocorrosion conditions, the CrAlN coating featured significantly lower total material loss and synergistic material loss than the CrN coating, demonstrating higher corrosion and tribocorrosion protection.

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Section: Tribocorrosion Testsmentioning

confidence: 99%

Electrochemical corrosion and tribocorrosion behavior of CrN and CrAlN coatings in artificial seawater

Bai,

Li,

Guo

et al. 2024

Int J Applied Ceramic Tech

Self Cite

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“…Generally, the main forms of wear on the substrate are adhesive and abrasive wear, whereas the wear mechanism of the MAO coatings was mainly abrasive wear. The widths of the wear tracks on the MAO coatings were significantly reduced, which led to an improvement in wear resistance [5,36]. Figure 11 presents SEM images depicting the width of the wear tracks of different samples under dry sliding conditions.…”

Section: Scratch Testingmentioning

confidence: 99%

“…Thus, the 5052 Al alloy in the service process will often cause parts corrosion, wear, and other issues, which seriously affect the service life of the equipment. In other words, 5052 alloy exhibits superior fatigue strength, ease of machining, corrosion resistance, and suitability for structural applications without the need for heat treatment [5,6]. However, as the demands for product strength and corrosion resistance continue to increase, effective strengthening mechanisms and surface treatments are indispensable to meet these requirements.…”

Section: Introductionmentioning

confidence: 99%

Correlation between Microstructural Properties and Electric Parameters of Micro-Arc Oxidation Coatings on 5052 Aluminum Alloys with Improving Wear and Corrosion Resistance

You,

Chang,

Jian

2023

Coatings

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Aluminum (Al) alloys are lightweight and machinable and have been widely used in industrial applications, particularly the formation of complex mechanical parts. However, the 5052 Al alloy frequently encounters problems like corrosion and wear during its service life, significantly impacting the equipment’s longevity. This study investigated the effects of pulse voltage (320 to 400 V) and frequency (50 to 200 Hz) on the growth and surface morphology of 5052 Al alloy films formed through micro-arc oxidation (MAO) to improve their corrosion and wear resistance while maintaining a surface roughness of less than 1 μm. The results indicate that higher operating voltages and frequencies correlated with increased thickness in the resulting ceramic oxide films formed using MAO. In addition, as the pulse frequency increased, the distribution of the holes became more uniform across the surface. We examined the surface and cross-sectional morphology, as well as the thickness of the MAO coatings, through scanning electron microscopy (SEM). The corrosion and wear resistance of the MAO coatings formed under different electrical parameters were analyzed using electrochemical corrosion tests and scratch tests. The MAO coatings produced at 400 V and 200 Hz were the thickest, at approximately 4.8 μm, and demonstrated superior corrosion and wear resistance. These coatings demonstrate significantly reduced wear width, highlighting their exceptional resistance to corrosion and wear. Hole cracking occurred only above the top layer of the coating and not beneath the mid-layer, which protected the substrate from damage due to the direct passage of Cl ions through the holes.

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“…Micro-arc oxidation (MAO) is a widely used surface treatment technique to modify magnesium alloys [ 3 , 4 , 5 , 6 ], aluminum alloys [ 7 , 8 , 9 , 10 , 11 , 12 ], titanium alloys [ 13 , 14 , 15 , 16 ], and tantalum alloys [ 17 ] by modulating electrolyte compositions and concentrations [ 18 , 19 , 20 ]. MAO technology can improve the corrosion resistance of magnesium alloys and introduce macro or trace elements such as phosphorus (P) and zinc (Zn) into MAO coating to produce functionalized coating.…”

Section: Introductionmentioning

confidence: 99%

Investigation of In Vitro Cytocompatibility of Zinc-Containing Coatings Developed on Medical Magnesium Alloys

Wang,

Liu,

Zhu

et al. 2023

Materials

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In a neutral solution, we investigated the effects of Na2[ZnEDTA] concentrations at 0, 6, 12, 18, and 24 g/L on surface morphology, chemical composition, degradation resistance, and in vitro cytocompatibility of micro-arc oxidation (MAO) coatings developed on WE43 (Mg-Y-Nd-Zr) magnesium alloys. The results show that the enhanced Na2[ZnEDTA] concentration increased the Zn amount but slightly decreased the degradation resistance of MAO-treated coatings. Among the zinc-containing MAO samples, the fabricated sample in the base solution added 6 g/L Na2[ZnEDTA] exhibits the smallest corrosion current density (6.84 × 10−7 A·cm−2), while the sample developed in the solution added 24 g/L Na2[ZnEDTA] and contains the highest Zn content (3.64 wt.%) but exhibits the largest corrosion current density (1.39 × 10−6 A·cm−2). Compared to untreated WE43 magnesium alloys, zinc-containing MAO samples promote initial cell adhesion and spreading and reveal enhanced cell viability. Coating degradation resistance plays a more important role in osseogenic ability than Zn content. Among the untreated WE43 magnesium alloys and the treated MAO samples, the sample developed in the base solution with 6 g/L Na2[ZnEDTA] reveals the highest ALP expression at 14 d. Our results indicate that the MAO samples formed in the solution with Na2[ZnEDTA] promoted degradation resistance and osseogenesis differentiation of the WE43 magnesium alloys, suggesting potential clinic applications.

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Enhanced corrosion and tribocorrosion behavior of plasma electrolytic oxidized coatings on 5052 aluminum alloy with addition of pullulan to silicate electrolyte

Cited by 16 publications

References 58 publications

Electrochemical corrosion and tribocorrosion behavior of CrN and CrAlN coatings in artificial seawater

Electrochemical corrosion and tribocorrosion behavior of CrN and CrAlN coatings in artificial seawater

Correlation between Microstructural Properties and Electric Parameters of Micro-Arc Oxidation Coatings on 5052 Aluminum Alloys with Improving Wear and Corrosion Resistance

Investigation of In Vitro Cytocompatibility of Zinc-Containing Coatings Developed on Medical Magnesium Alloys

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