One-step in situ growth of a simple and efficient pore-sealing coating on micro-arc oxidized AZ31B magnesium alloy

Yang, Shuaikang; Wang, Chen; Li, Fuzhen; Liu, Naihao; Shi, Putong; Wang, Bo; Sun, Ruixue

doi:10.1016/j.jallcom.2022.164710

Cited by 15 publications

(6 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the anodizing treatment was conducted in a sodium phosphate-based electrolyte, the formation of magnesium phosphate is expected. The peaks are in good agreement with other reports in the literature 47,48 . The same components were also found on the surface of the PHO-30 sample (Supplementary files -Figure S7b).…”

Section: Xps Analysissupporting

confidence: 92%

See 1 more Smart Citation

Effect of Anodization on the Stress Corrosion Cracking Behavior of The AZ61 Magnesium Alloy in 0.1 M NaCl Solution

et al. 2023

View full text Add to dashboard Cite

The treatment was conducted at two different current densities, 20 and 30 mA.cm -2 for 10 minutes. The anodized layers were characterized by scanning electron microscopy, X-ray diffractometry and X-ray photoelectron spectroscopy. The corrosion resistance was assessed by potentiodynamic polarization tests. The SCC behavior was studied using slow strain rate tests in 0.1 M NaCl solution at room temperature. Conventional tensile tests were also conducted in air. The susceptibility to SCC was dependent on the morphology of the anodized film. The composition of the electrolyte and the current density of the anodization treatment affected the SCC susceptibility of the AZ61 alloy. The best corrosion resistance and the lowest susceptibility to SCC were obtained for samples anodized in the borate-containing electrolyte at 30 mA.cm -2 . The smooth and compact surface morphology of the anodized film obtained in this condition was the main reason for the improved SCC behavior of the AZ61 alloy.

show abstract

Section: Xps Analysissupporting

confidence: 92%

“…For both samples the small peak at approximately 133 eV is assigned to phosphate bonds, in accordance with the literature 52 . The formation of Mg 3 (PO 4 ) 2 is expected in this type of process 47,48 . The XPS results confirm the presence of this phase, as also observed in the XRD patterns displayed in Figure 3.…”

Section: Xps Analysismentioning

confidence: 91%

Effect of Anodization on the Stress Corrosion Cracking Behavior of The AZ61 Magnesium Alloy in 0.1 M NaCl Solution

et al. 2023

View full text Add to dashboard Cite

show abstract

“…During this stage, the current is concentrated within zones of breakdown, resulting in locally thickened oxide coatings. Unlike other areas with less resistance, the new layer is less resistant to current flow, reducing its resistance to leakage [62]. There is an accidental spreading and rapid movement of several tiny white sparks over the entire anode surface in conjunction with a shrill sound [63,64].…”

Section: Peo Processmentioning

confidence: 99%

Unveiling the Effect of Particle Incorporation in PEO Coatings on the Corrosion and Wear Performance of Magnesium Implants

Almajidi,

Ali,

Jameel

et al. 2023

Lubricants

View full text Add to dashboard Cite

Magnesium has been a focal point of significant exploration in the biomedical engineering domain for many years due to its exceptional attributes, encompassing impressive specific strength, low density, excellent damping abilities, biodegradability, and the sought-after quality of biocompatibility. The primary drawback associated with magnesium-based implants is their susceptibility to corrosion and wear in physiological environments, which represents a significant limitation. Research findings have established that plasma electrolytic oxidation (PEO) induces substantial modifications in the surface characteristics and corrosion behavior of magnesium and its alloy counterparts. By subjecting the surface to high voltages, a porous ceramic coating is formed, resulting in not only altered surface properties and corrosion resistance, but also enhanced wear resistance. However, a drawback of the PEO process is that excessive pore formation and porosity within the shell could potentially undermine the coating’s corrosion and wear resistances. Altering the electrolyte conditions by introducing micro- and nano-particles can serve as a valuable approach to decrease coating porosity and enhance their ultimate characteristics. This paper evaluates the particle adhesion, composition, corrosion, and wear performances of particle-incorporated coatings applied to magnesium alloys through the PEO method.

show abstract

“…When the phase decomposes after solid solution 20 at 420°C, the A1 atoms are solidified by displacing the solid solution. Interfacial dislocations exist at the HCP/BCC interface, and the mismatch at the interface is large, resulting in the formation of interfacial mismatch degree dislocations, which play a good strengthening effect on the alloy [12][13].…”

Section: Introductionmentioning

confidence: 99%

Study on the work-hardening behavior and tissue property analysis of high-strength magnesium alloy

Zhang,

Liang,

et al. 2023

Applied Mathematics and Nonlinear Sciences

View full text Add to dashboard Cite

Magnesium alloys show great superiority for modern applications due to their good biocompatibility, degradability, and excellent mechanical properties. In this paper, the strengthening effects and mechanisms of composite precipitation phases, microalloying regulated recrystallization behavior, composite grain organization, and new strain aging methods in magnesium alloys are investigated in terms of five stages of work hardening, heat treatment, and strengthening properties. The use of rare earth elements can effectively enhance the aging strengthening properties of magnesium alloy through the use of gadolinium (Gd) and yttrium (Y) in rare earth elements for the development of high-strength magnesium alloy. The results show that the solubility of aluminum in magnesium reaches the maximum of 12.6mmass.% at the eutectic temperature of 436℃and then gradually decreases with the decrease of temperature, and when the temperature decreases to room temperature, the solubility decreases to 2mass.%. The elongation of alloy 0.5Al alloy 0.5Zr alloy on the basis of the aging state was 6.7% and 4.8%, respectively. This paper provides theoretical and experimental guidance for the development of high-strength magnesium alloys through an in-depth study of strengthening mechanisms such as composite precipitation strengthening, crystal strengthening and strain aging strengthening.

show abstract

One-step in situ growth of a simple and efficient pore-sealing coating on micro-arc oxidized AZ31B magnesium alloy

Cited by 15 publications

References 51 publications

Effect of Anodization on the Stress Corrosion Cracking Behavior of The AZ61 Magnesium Alloy in 0.1 M NaCl Solution

Effect of Anodization on the Stress Corrosion Cracking Behavior of The AZ61 Magnesium Alloy in 0.1 M NaCl Solution

Unveiling the Effect of Particle Incorporation in PEO Coatings on the Corrosion and Wear Performance of Magnesium Implants

Study on the work-hardening behavior and tissue property analysis of high-strength magnesium alloy

Contact Info

Product

Resources

About