In vitro corrosion properties and cytocompatibility of Fe-Ga alloys as potential biodegradable metallic materials.

Mater Sci Eng C Mater Biol Appl

School of Materials Science and Engineering, Beihang University, Beijing 100191, China. Electronic address:

Published: February 2017

The in vitro biodegradable properties and cytocompatibility of Fe-Ga alloys including FeGa, (FeGa)B and (FeGa)(TaC), and pure Fe were investigated for biomedical applications. The microstructure of the alloys was characterized using X-ray diffraction spectroscopy and optical microscopy. The results showed that A2 and D0 phases were detected for the three types of Fe-Ga alloys, and additional FeB and TaC phases were found in the (FeGa)B and (FeGa)(TaC) alloys, respectively. The corrosion rates of the Fe-Ga alloys were higher than that of pure Fe, as demonstrated by both potentiodynamic polarization measurements and immersion tests in simulated body fluid. The alloying element Ga lowered the corrosion potential of the Fe matrix and made it more susceptible to corrosion. Severe pitting corrosion developed on the surface of the FeGa alloy after the addition of ternary B or TaC due to the multi-phase microstructures. The MC3T3-E1 cells exhibited good adhesion and proliferation behavior on the surfaces of the Fe-Ga alloys after culture for 4h and 24h.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.msec.2016.09.086DOI Listing

Publication Analysis

Top Keywords

fe-ga alloys
20
properties cytocompatibility
8
cytocompatibility fe-ga
8
fegab fegatac
8
alloys
7
fe-ga
5
vitro corrosion
4
corrosion properties
4
alloys potential
4
potential biodegradable
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!