Corrosion resistance and microstructure characterization of rare-earth-transition metal–aluminum–magnesium alloys

Banczek, E.P.; Zarpelon, Lia Maria Carlotti; Faria, Rubens Nunes de; Costa, Isolda

doi:10.1016/j.jallcom.2008.12.075

Cited by 25 publications

(13 citation statements)

References 37 publications

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“…For this reason, other alloying elements have been combined with magnesium to modulate degradation properties and mechanical strength in order to temporarily support the healing of the injured bone tissue and allow proper initial cellular growth [ 32 ]. The most recently examined Mg alloys are magnesium-silver (Mg-Ag) and other magnesium-rare-earth (Mg-RE) alloys [ 33 – 35 ]. In the present study, different magnesium alloys with controlled degradation rates and defined alloying components were tested aiming at biodegradable bone applications.…”

Section: Discussionmentioning

confidence: 99%

Influence of Magnesium Alloy Degradation on Undifferentiated Human Cells

et al. 2015

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BackgroundMagnesium alloys are of particular interest in medical science since they provide compatible mechanical properties with those of the cortical bone and, depending on the alloying elements, they have the capability to tailor the degradation rate in physiological conditions, providing alternative bioresorbable materials for bone applications. The present study investigates the in vitro short-term response of human undifferentiated cells on three magnesium alloys and high-purity magnesium (Mg).Materials and MethodsThe degradation parameters of magnesium-silver (Mg2Ag), magnesium-gadolinium (Mg10Gd) and magnesium-rare-earth (Mg4Y3RE) alloys were analysed after 1, 2, and 3 days of incubation in cell culture medium under cell culture condition. Changes in cell viability and cell adhesion were evaluated by culturing human umbilical cord perivascular cells on corroded Mg materials to examine how the degradation influences the cellular development.Results and ConclusionsThe pH and osmolality of the medium increased with increasing degradation rate and it was found to be most pronounced for Mg4Y3RE alloy. The biological observations showed that HUCPV exhibited a more homogeneous cell growth on Mg alloys compared to high-purity Mg, where they showed a clustered morphology. Moreover, cells exhibited a slightly higher density on Mg2Ag and Mg10Gd in comparison to Mg4Y3RE, due to the lower alkalinisation and osmolality of the incubation medium. However, cells grown on Mg10Gd and Mg4Y3RE generated more developed and healthy cellular structures that allowed them to better adhere to the surface. This can be attributable to a more stable and homogeneous degradation of the outer surface with respect to the incubation time.

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Section: Discussionmentioning

confidence: 99%

Influence of Magnesium Alloy Degradation on Undifferentiated Human Cells

et al. 2015

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“…In recent years, various studies for worldwide environmental protection have been underway, especially for reducing carbon dioxide emission. In order to achieve this goal, finding application fields of lightweight materials such as magnesium and aluminum alloys has been actively progressed [12][13][14]. For example, in order to broaden the application of magnesium alloys, stainless steel/ magnesium (STS/Mg) combination can be drawn a growing interest as an excellent macro-scale clad metal combining the advantages of STS's high strength and excellent corrosion resistance with Mg's extraordinary lightweight and high specific strength properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of annealing on the interface microstructure and mechanical properties of a STS–Al–Mg 3-ply clad sheet

Lee¹,

Yoon²,

Kim³

et al. 2012

Materials Science and Engineering: A

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“…Liu and Liao et al [13,14] researched the influence of element additive and substitution on the structure and electrochemical behaviours of the alloys, and the results showed that the addition and substitution of elements Al, Cu, Fe, Mn, Co and Zr significantly improved the electrochemical performances of the alloys. Banczek et al [15] reported that the alloy without Pr and the one with total La substitution showed the highest corrosion resistance among the La 0.7−x Pr x Mg 0.3 Al 0.3 Mn 0.4 Co 0.5 Ni 3.8 (x = 0, 0.1, 0.3, 0.5, and 0.7) alloys. It is well known that the element substitution is one of the effective methods for improving the overall properties of the hydrogen storage alloys.…”

Section: Introductionmentioning

confidence: 99%