Magnesium alloy containing silver for degradable biomedical implants
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
Standard
METAL 2014 - 23rd International Conference on Metallurgy and Materials, Conference Proceedings. TANGER Ltd., 2014. p. 1086-1091.
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - CHAP
T1 - Magnesium alloy containing silver for degradable biomedical implants
AU - Lukáč, František
AU - Vlček, Marián
AU - Stulíková, Ivana
AU - Smola, Bohumil
AU - Kudrnová, Hana
AU - Vlach, Martin
AU - Kekule, Tomáš
AU - Szakács, Gábor
AU - Hort, Norbert
AU - Kainer, Karl Ulrich
N1 - Conference code: 23
PY - 2014
Y1 - 2014
N2 - As a potential candidate for a biodegradable implant material, we designed the composition and investigated the properties of the magnesium alloy containing rare earth metals, namely yttrium and neodymium, with an addition of silver showing the evidence of antibacterial effects and promising corrosion rate in a body[2]. The as-cast Mg-2Y-1Nd-1Ag alloy exhibits hard regions of eutectics containing Y, Nd and Ag along the grain boundaries and contains also the long period stacking-ordered structure inside the Mg matrix. The eutectic regions continuously dissolve at 500 °C with increasing time while new particles develop in form of discs embedded in the magnesium matrix parallel to each other within a grain. During this process, an overall microhardness decreases to its minimum value. However, after homogenization annealing at 525 °C neither eutectic regions nor disc-shape particles were revealed in scanning electron microscope even though the microstructure development during the prolonged annealing at 525 °C leads to superior microhardness value. Microhardness measurements, electrical resistivity measurements at low temperature, scanning electron microscopy and synchrotron diffraction methods were used in this work.
AB - As a potential candidate for a biodegradable implant material, we designed the composition and investigated the properties of the magnesium alloy containing rare earth metals, namely yttrium and neodymium, with an addition of silver showing the evidence of antibacterial effects and promising corrosion rate in a body[2]. The as-cast Mg-2Y-1Nd-1Ag alloy exhibits hard regions of eutectics containing Y, Nd and Ag along the grain boundaries and contains also the long period stacking-ordered structure inside the Mg matrix. The eutectic regions continuously dissolve at 500 °C with increasing time while new particles develop in form of discs embedded in the magnesium matrix parallel to each other within a grain. During this process, an overall microhardness decreases to its minimum value. However, after homogenization annealing at 525 °C neither eutectic regions nor disc-shape particles were revealed in scanning electron microscope even though the microstructure development during the prolonged annealing at 525 °C leads to superior microhardness value. Microhardness measurements, electrical resistivity measurements at low temperature, scanning electron microscopy and synchrotron diffraction methods were used in this work.
KW - Biodegradable implants
KW - Magnesium alloys
KW - Mechanical properties
KW - Rare earths
KW - Silver
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84924937706&partnerID=8YFLogxK
M3 - Article in conference proceedings
AN - SCOPUS:84924937706
SN - 9788087294543
SP - 1086
EP - 1091
BT - METAL 2014 - 23rd International Conference on Metallurgy and Materials, Conference Proceedings
PB - TANGER Ltd.
T2 - 23rd International Conference on Metallurgy and Materials, METAL 2014
Y2 - 21 May 2014 through 23 May 2014
ER -