RT Journal Article
SR Electronic
A1 Lovaši, Tomáš
A1 Pinc, Jan
A1 Voňavková, Ilona
T1 Zinc-based Degradable Biomaterials - Limitations and Enhancements
JF Manufacturing Technology Journal
YR 2019
VO 19
IS 4
SP 632
OP 636
DO 10.21062/ujep/346.2019/a/1213-2489/MT/19/4/632
UL https://journalmt.com/artkey/mft-201904-0015.php
AB Nowadays there is a high trend and effort to find a suitable biodegradable metal, whose mechanical properties would be the same or higher to those of currently used biomaterials. Current biomaterials, such as stainless steels, cobalt-chromium alloys, and titanium alloys have superior mechanical properties, machinability, and durability, but are considered nondegradable, and long-term clinical complications may occur. Their biggest disadvantage is that the patient must have undergone a second removal surgery. Therefore, new biodegradable materials have been developed to eliminate the shortcomings of current biomaterials. Magnesium (Mg), iron (Fe) and zinc (Zn) based alloys have been proposed as biodegradable metals for medical application. Iron-based alloys show good mechanical properties compared to magnesium-based alloys. However, both of them exhibit bad corrosion properties, because the degradation rate of magnesium has proven to be high. On the other hand, the degradation of iron-based alloys is too slow in a physiological environment. The corrosion attack of both materials is not typically uniform. Therefore, zinc is proven to be a promising material for this application.