Microstructural, mechanical, corrosion and cytotoxicity characterization of the hot forged FeMn30(wt.%) alloy

0451663 - FZÚ 2017 NL eng J - Článek v odborném periodiku
Čapek, Jaroslav - Kubásek, J. - Vojtěch, D. - Jablonská, E. - Lipov, J. - Ruml, T.
Microstructural, mechanical, corrosion and cytotoxicity characterization of the hot forged FeMn30(wt.%) alloy.
Materials Science & Engineering C-Materials for Biological Applications. Roč. 58, Jan (2016), s. 900-908. ISSN 0928-4931. E-ISSN 1873-0191
Grant CEP: GA ČR GBP108/12/G043
Institucionální podpora: RVO:68378271
Klíčová slova: FeMn alloys * biodegradability * cytotoxicity * microstructure * mechanical properties
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 4.164, rok: 2016

Besides magnesium based materials, iron-manganese alloys have been considered as possible candidates for fabrication of biodegradable stents and orthopedic implants. In this study, we prepared a hot forged FeMn30 (wt.%) alloy and investigated its microstructural, mechanical and corrosion characteristics as well as cytotoxicity towards mouse L 929 fibroblasts. The obtained results were compared with those of iron.The potentiodynamic measurements in simulated body fluids showed that alloying with manganese lowered the free corrosion potential and enhanced the corrosion rate, compared to iron. On the other hand, the corrosion rate of FeMn30 obtained by a semi-static immersion test was significantly lower than that of iron, most likely due to a higher degree of alkalization in sample surrounding.
Trvalý link: http://hdl.handle.net/11104/0258606