Corrosion behaviour of biodegradable Mg-Zn-Mn-Ce, Mg-Zn-Ca-Ce, and Mg-Zn-Ca-Mn quaternary magnesium alloys in phosphate-buffered saline

dc.authoridhttps://orcid.org/0000-0002-3835-8425
dc.authoridhttps://orcid.org/0000-0001-7518-1625
dc.contributor.authorZengin, Hüseyin
dc.contributor.authorHofinger, Manuel
dc.contributor.authorSilva Campos, Maria del Rosario
dc.contributor.authorBlawert, Carsten
dc.contributor.authorPolat, Safa
dc.contributor.authorNienaber, Maria
dc.contributor.authorBohlen, Jan
dc.contributor.authorZheludkevich, Mikhail
dc.contributor.authorHassel, Achim Walter
dc.date.accessioned2025-03-07T08:18:02Z
dc.date.available2025-03-07T08:18:02Z
dc.date.issued2025-01-09
dc.departmentDemir Çelik Enstitüsü, Demir Çelik Ana Bilim Dalı
dc.description.abstractIn this study, lean quaternary magnesium alloys with nominal compositions (wt%) of Mg-1Zn-0.5Mn-0.3Ce (Mg-Zn-Mn-Ce), Mg-1Zn-0.2Ca-0.3Ce (Mg-Zn-Ca-Ce) and Mg-1Zn-0.2Ca-0.5Mn (Mg-Zn-Ca-Mn) were produced using permanent mould direct chill casting and the corrosion behaviours up to 168 h of immersion in phosphate buffer solution (PBS) at 37 °C were investigated. Various techniques were employed to conduct corrosion tests, including weight loss, hydrogen evolution, inductively coupled plasma optical emission spectroscopy (ICP-OES) to quantify the amount of released Mg during both static immersion tests and downstream analysis using a flow cell, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). The obtained data was analysed in detail to compare the corrosion resistance of the three magnesium alloys and the effectiveness of the various test methods. Among the studied alloys, the Mg-Zn-Mn-Ce alloy exhibited the highest dissolution rate during the initial immersion period. However, a substantial improvement in the corrosion resistance was observed for this alloy, especially after 24 h of immersion due to the formation of a dense and compact protective surface film. Additionally, the Mg-Zn-Ca-Mn alloy displayed better corrosion resistance compared to the Mg-Zn-Ca-Ce alloy for immersion durations up to 24 h, above which it significantly decreased.
dc.identifier.citationZengin, H., Hofinger, M., Silva Campos, M.D., Blawert, C., Polat, S., Nienaber, M., Bohlen, J., Zheludkevich, M.L., & Hassel, A.W. (2025). Corrosion behaviour of biodegradable Mg-Zn-Mn-Ce, Mg-Zn-Ca-Ce, and Mg-Zn-Ca-Mn quaternary magnesium alloys in phosphate-buffered saline. Journal of Alloys and Compounds.
dc.identifier.doi10.1016/j.jallcom.2025.178582
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.scopus2-s2.0-85214490432
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2025.178582
dc.identifier.urihttps://hdl.handle.net/20.500.14619/15128
dc.identifier.volume1013
dc.identifier.wosWOS:001397582100001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakScopus
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherElsevier BV
dc.relation.ispartofJournal of Alloys and Compounds
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBiodegradable implants
dc.subjectCorrosion
dc.subjectMagnesium alloy
dc.subjectMicrostructure
dc.titleCorrosion behaviour of biodegradable Mg-Zn-Mn-Ce, Mg-Zn-Ca-Ce, and Mg-Zn-Ca-Mn quaternary magnesium alloys in phosphate-buffered saline
dc.typejournal-article
oaire.citation.volume1013

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