A comparative study of the in vitro corrosion behavior and cytotoxicity of a superferritic stainless steel, a Ti-13Nb-13Zr alloy, and an austenitic stainless steel in Hank' s solution
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Journal of Biomedical Materials Research, B
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In this study, the in vitro corrosion resistance of a superferritic stainless steel in
naturally aerated Hank’s solution at 37°C has been determined to evaluate the steel for use as
a biomaterial. The potentiodynamic polarization method and electrochemical impedance
spectroscopy (EIS) were used to determine the corrosion resistance. The polarization results
showed very low current densities at the corrosion potential and electrochemical behavior
typical of passive metals. At potentials above 0.75 V (SCE), and up to that of the oxygen
evolution reaction, the superferritic steel exhibited transpassive behavior followed by secondary passivation. The superferritic stainless steel exhibited high pitting resistance in Hank’s
solution. This steel did not reveal pits even after polarization to 3000 mV (SCE). The EIS
results indicated high impedance values at low frequencies, supporting the results obtained
from the polarization measurements. The results obtained for the superferritic steel have been
compared with those of the Ti-13Nb-13Zr alloy and an austenitic stainless steel, as Ti alloys
are well known for their high corrosion resistance and biocompatibility, and the austenitic
stainless steel is widely used as an implant material. The cytotoxicity tests indicated that the
superferritic steel, the austenitic steel, and the Ti-13Nb-13Zr alloy were not toxic. Based on
corrosion resistance and cytotoxicity results, the superferritic stainless steel can be considered
as a potential biomaterial.
Como referenciar
ASSIS, S.L.; ROGERO, S.O.; ANTUNES, R.A.; PADILHA, A.F.; COSTA, I. A comparative study of the in vitro corrosion behavior and cytotoxicity of a superferritic stainless steel, a Ti-13Nb-13Zr alloy, and an austenitic stainless steel in Hank' s solution. Journal of Biomedical Materials Research, B, v. 73, n. 1, p. 109-116, 2005. DOI: 10.1002/jbm.b.30205. Disponível em: http://repositorio.ipen.br/handle/123456789/5458. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.