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I n t e r n a t i o n a l C o n f e r e n c e o n
Metal, Mining and
Magnetic Materials
Journal of Material Sciences
ISSN: 2321-6212
N o v e m b e r 0 1 - 0 2 , 2 0 1 8
P a r i s , F r a n c e
Metal and Magnetism 2018
Page 26
Jiri Kubasek et al., J Mat. Sci. 2018, Volume:6
DOI: 10.4172/2321-6212-C7-032
Z
inc-based alloys are considered as alternative possibility compared to
magnesium in the case of the development of biodegradable materials
for medical applications. The main reasons are related to the low corrosion
rate, the absence of hydrogen evolution during degradation in an organism,
biocompatibility of Zn and possibility to improve mechanical properties of Zn by
suitable alloying. In such case, Mg and Ca which represents essential elements
in the human organismare considered as good candidates. Present paper brings
the knowledge about microstructure, mechanical and corrosion properties of
Zn-0.8 Mg-0.2 Ca ternary alloy in the as-cast, thermally treated and as-extruded
conditions. Obtained results indicate that microstructure conditions in the as-
cast state are affected by cooling rates. Thermal treatment affects the alloy
phase composition, although solubility of Mg and Ca in Zn is neglectable. The
changes of microstructure directly affect mechanical properties of prepared
materials. Processing by extrusion causes a significant increase of mechanical
properties with the values of UTS over 300 MPa. Corrosion rates of variously
processed materials are similar and no significant changes were observed in
simulated body fluid
Biography
JiříKubásekhascompletedhisPhD inPropertiesofmagnesium
alloys usable as biodegradable materials from UCT Prague in
2017. He lectures at the UCT Prague and is also responsible
for the management of the Diploma and Bachelor thesis.
His scientific research is focused on the development and
characterization of magnesium- and zinc-based biodegradable
materials. He also works at the Institute of Physics of the Czech
Academy of Sciences, where he participates on the studies
related to the processing of the surface of various materials
by laser peening. He has published more than 27 papers in
high impact journals and more than 15 papers in other reputed
journals presented on SCOPUS.
Kubasek.jiri@vscht.czMicrostructure and corrosion of Zn-Mg-Ca ternary alloys
Jiri Kubasek
1
, D Dvorsky
1
, J Capek
2
, J Pinc
2
and D Vojtech
1
1
UCT Prague, Czech Republic
2
Institute of Physics, Czech Academy of Sciences, Czech Republic