Preparation and characterization of alloys of the Ti–15Mo–Nb system for biomedical applications
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Journal of Biomedical Materials Research Part B: applied biomaterials
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In the development of new metallic biomaterials,
the Ti–15Mo alloy has great prominence because of its excellent
corrosion resistance and good combination of mechanical
properties. In this study, the element niobium was added
to the Ti–15Mo alloy, forming the Ti–15Mo–Nb system for the
purpose of improving their properties and promoting its
application as a biomaterial. These alloys are very promising
to use as biomedical implants, because they integrate a new
class of titanium alloys without the presence of aluminum and
vanadium, which may cause cytotoxic effects. The alloys were
produced by arc-melting and characterized by density, X-ray
diffraction, scanning electron microscopy, microhardness, elastic
modulus, corrosion, and cytotoxicity assays. The developed
alloys have b phase predominance (with bcc crystalline structure).
The addition of niobium decreases the microhardness
and elastic modulus, with values around 80 GPa, which is well
below that of the metallic alloys used commercially for this
type of application. Very low passive current densities were
found for all alloys studied showing that the passive film on
these alloys is highly protective. In vitro cytotoxicity tests
revealed that the introduction of niobium did not cause cytotoxic
effects in the studied alloys.
Como referenciar
MARTINS JUNIOR, J.R.S.; MATOS, A.A.; OLIVEIRA, R.C.; BUZALAF, M.A.R.; COSTA, I.; ROCHA, L.A.; GRANDINI, C.R. Preparation and characterization of alloys of the Ti–15Mo–Nb system for biomedical applications. Journal of Biomedical Materials Research Part B: applied biomaterials, v. 106, n. 2, 2018. Disponível em: http://repositorio.ipen.br/handle/123456789/27752. 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.