Impact of 3D-printed PLA coatings on the mechanical and adhesion properties of AM60 magnesium alloys

Rezanezhad, Saeid; Azadi, Mohammad

doi:10.1016/j.jcomc.2023.100415

Cited by 3 publications

(2 citation statements)

References 39 publications

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“…The 3D printing parameters of these coatings are presented in Table 2. These parameters were chosen according to the literature [33,34]. The polymer coatings were attached to magnesium fatigue standard samples using glue.…”

Section: Materials and Manufacturing Methodsmentioning

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: Materials and Manufacturing Methodsmentioning

confidence: 99%

“…In another study [36], the amount of adhesion between PLA and Mg, which were connected to each other by the electrolytic plasma oxidation method, was also measured. More details about these adhesion testing results can be found in the previous work [33].…”

Section: Materials and Manufacturing Methodsmentioning

confidence: 99%

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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The influence of 3D-printed PLA coatings on pure and fretting fatigue properties of AM60 magnesium alloys under cyclic bending loads

Rezanezhad,

Azadi

2024

Heliyon

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The Effect of 3D-Printed Polylactic Acid Coating Layers on High-Cycle Fatigue Behaviors of AM60 Magnesium Alloys for Additive-Manufactured and Degraded Specimens in Simulated Body Fluid

Ashraf Talesh,

Azadi

2023

Preprint

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In the previous work, the pure fatigue behavior of AM60 magnesium alloy (PF-AM60) was compared with the corrosion fatigue behavior of these specimens (CF-AM60). In this research, in continuation of the previous job, the pure fatigue behaviors of AM60 with polylactic acid (PLA) coating (PF-AM60-PLA) and also, 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 a glue. Then, they were immersed in the simulated body fluid (SBF) for 27 days. In the end, a high-cycle bending fatigue test was performed on samples. The fracture surface of the samples was also observed using the field emission scanning electron microscopy (FESEM). Due to corrosion, the weight of the specimens redcued by an average of 35%. The corrosion rate decreased in the first 7 days and then increased. PF samples with coating had an average of 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%. FESEM results also showed cleavage plates and striations. In addition, the separation of the glue from the coating and Mg was observed. Corrosion products including microcracks and holes were seen on the fracture surface of CF specimens, which caused stress concentration and crack growth. Holes caused by the release of gases were also observed in polymer coatings.

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Impact of 3D-printed PLA coatings on the mechanical and adhesion properties of AM60 magnesium alloys

Cited by 3 publications

References 39 publications

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

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

The influence of 3D-printed PLA coatings on pure and fretting fatigue properties of AM60 magnesium alloys under cyclic bending loads

The Effect of 3D-Printed Polylactic Acid Coating Layers on High-Cycle Fatigue Behaviors of AM60 Magnesium Alloys for Additive-Manufactured and Degraded Specimens in Simulated Body Fluid

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