Bio-polymer coatings fabricated on AM60 magnesium alloys by fused deposition modeling 3D-printing to investigate electrochemical behavior

Beyzavi, A.H.; Azadi, Mohammad; Dezianian, Shokouh; Talebsafa, V.

doi:10.1016/j.matlet.2023.133935

Cited by 13 publications

(2 citation statements)

References 17 publications

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“…This observation is likely attributed to the non-passivating nature of iron in an acidic environment. Beyzavi et al [29] explored bio-polymer coatings, generating these coatings on the AM60 magnesium alloy with 3D printing by fused deposition modeling (FDM) in their study. These coatings were applied to explore the electrochemical behavior of the treated magnesium alloys.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the conducted studies, it was determined that many researchers had worked in the field of AM60 corrosion, and their goal was to improve corrosion using various methods [7][8][9][10][11][12][13][14][15]. Moreover, studies have shown that the use of biodegradable polymer coatings such as PLA can have a positive impact on corrosion [26][27][28][29]. Furthermore, it was disclosed that several studies were carried out in the field of fatigue for AM60 alloys [16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Corrosion in Simulated Body Fluid on Fatigue Characteristics of 3D-Printed Polylactic Acid-Coated AM60 Magnesium Alloys

Ashraf Talesh,

Azadi

2024

Surfaces

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In this research, the pure fatigue behaviors of AM60 magnesium alloy with polylactic acid (PLA) coating (PF-AM60-PLA) and the corrosion fatigue behaviors of magnesium alloy with PLA coating (CF-AM60-PLA) were evaluated. Polymer coating was made by fused deposition modeling (FDM) with a 3D printer and attached to standard fatigue test specimens with glue. Then, after 27 days of immersion in the simulated body fluid (SBF), the high-cycle bending fatigue test was performed on samples. Due to corrosion, the weight of the specimens was reduced by an average of 35%. The corrosion rate decreased in the first 7 days and then increased. PF samples with a coating had an average 49% increase in fatigue lifetime. Regarding the CF samples, despite the use of a 10-times stronger solution, the fatigue lifetime of these samples decreased by only 35%. The field-emission scanning electron microscopy (FESEM) results also showed cleavage plates and striations. In addition, the separation of the glue from the coating and Mg was observed. Corrosion products, in addition to microcracks and holes, were seen on the fracture surface of CF specimens, which caused the stress concentration and the crack initiation. Holes caused by the release of gases were also observed in polymer coatings, which were fabricated by 3D printing.

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Section: Introductionmentioning

confidence: 99%