Title of article
Corrosion behaviour of Ti–Nb–Sn shape memory alloys in different simulated body solutions
Author/Authors
Zheng، نويسنده , , Y.F. and Wang، نويسنده , , B.L. and Wang، نويسنده , , J.G. and Li، نويسنده , , C. and Zhao، نويسنده , , L.C.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
5
From page
891
To page
895
Abstract
The corrosion resistance of Ti–Nb–Sn alloys in the 0.9% NaCl physiological and Hankʹs solutions with different pH values (2.4, 5.4, 7.4) at 37 °C were investigated by means of open circuit potential (OCP), Tafel and anodic polarization techniques. The compositions of the passive films were analysed by X-ray photoelectron spectroscopy (XPS). The OCP was found to stabilize within several hours for Ti–Nb–Sn alloys in the Hankʹs solution but continued to increase in the 0.9% NaCl solution. Tafel results indicated that the corrosion current densities were in the magnitude of below 1 μA/cm2. Anodic polarization curves demonstrated a wide passive region. XPS analysis results revealed that the passive film mainly consisted of TiO2, Nb2O5 and SnO2. These observations suggest that Ti–Nb–Sn alloys have a large potential for biomedical applications.
Keywords
XPS , Corrosion behaviour , Simulated body solutions , Ti–Nb–Sn alloys
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2006
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2148256
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