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Microstructure and Wear Behavior of Heat-Treated Mg-1Zn-1Ca Alloy for Biomedical Applications

dc.contributor.authorPulido-González, Nuria
dc.contributor.authorGarcía-Rodríguez, Sonia
dc.contributor.authorTorres, Belén
dc.contributor.authorRams, Joaquín
dc.date.accessioned2024-04-03T06:57:13Z
dc.date.available2024-04-03T06:57:13Z
dc.date.issued2023-12-22
dc.identifier.citationPulido-González, N.; García-Rodríguez, S.; Torres, B.; Rams, J. Microstructure and Wear Behavior of Heat-Treated Mg-1Zn-1Ca Alloy for Biomedical Applications. Materials 2024, 17, 70. https://doi.org/10.3390/ma17010070es
dc.identifier.urihttps://hdl.handle.net/10115/31919
dc.description.abstractThe microstructure and wear properties of a Mg-1wt.% Zn-1wt.% Ca (ZX11) alloy with different heat treatments have been investigated. The ZX11 alloy was tested in the as-cast state and after different heat treatment conditions: solution-treated (at 450 °C for 24 h), peak-aged (solution-treated + aged at 180 °C for 3 h), and over-aged (solution-treated + aged at 180 °C for 24 h). The microstructure of the as-cast sample showed a continuous intermetallic phase at the grain boundaries, while the heat-treated samples exhibited discrete precipitated particles within the grains. To evaluate the wear behavior, the samples were tested using a pin-on-disc configuration, where the wear rates and friction coefficients were measured at different loads and sliding speeds. An AZ31 magnesium alloy was used as the counterbody. The worn surfaces and the wear debris were studied to identify the main wear mechanisms corresponding to each test condition. The results indicated the presence of abrasion, oxidation, and adhesive wear mechanisms in all testing conditions. In the as-cast state, delamination and plastic deformation were the dominant wear mechanisms, while they were less relevant in the heat-treated conditions. The peak-aged samples exhibited the lowest wear rates, suggesting that modifying the distribution of intermetallic precipitates contributed to enhancing the wear resistance of the alloy.es
dc.language.isoenges
dc.publisherMultidisciplinary Digital Publishing Institutees
dc.rightsAttribution 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectmagnesium alloys; Mg-Zn-Ca alloys; sliding wear; heat treatment; precipitation; biodegradable implantses
dc.titleMicrostructure and Wear Behavior of Heat-Treated Mg-1Zn-1Ca Alloy for Biomedical Applicationses
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.3390/ma17010070es
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses


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Attribution 4.0 InternacionalExcept where otherwise noted, this item's license is described as Attribution 4.0 Internacional