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New approach to formation of coatings on Mg-Mn-Ce alloy using a combination of plasma treatment and spraying of fluoropolymers 被引量:2

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摘要 This paper presents a method of the formation of composite polymer-containing coatings on a Mg–Mn–Ce magnesium alloy by forming a ceramic-like layer using plasma electrolytic oxidation(PEO)and subsequent spraying superdispersed polytetrafluoroethylene suspension.The coating composition and their morphological features were studied by SEM,EDS,GDOES,and XRD.The presented data confirm the embedding of fluoropolymer in the PEO coating.The evaluation of the corrosion properties of the formed composite polymer-containing coatings indicates a decrease in the corrosion current density by more than 3 orders of magnitude in comparison with the base PEO coating.The incorporation of a fluoropolymer in a PEO layer by more than 32%increases the load value at which abrasion of the coating to the substrate occurs and reduces the wear of the coating by more than 27 fold in comparison with the PEO layer.It has been established that composite coatings possess hydrophobic properties:the value of the contact angle attains 152°.
出处 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2022年第4期1033-1050,共18页 镁合金学报(英文)
基金 supported by the Russian Science Foundation[Grant No.20-73-00280].
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