Title of article
The influence of albumin on the anodic dissolution of chromium present in UNS S31254 stainless steel in chloride environment
Author/Authors
Afonso، نويسنده , , M.L.C.A. and Villamil Jaimes، نويسنده , , R.F.V. and Arêas، نويسنده , , E.P.G. and Capri، نويسنده , , M.R. and Oliveira، نويسنده , , E. and Agostinho، نويسنده , , S.M.L.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
4
From page
760
To page
763
Abstract
The influence of bovine serum albumin (BSA) on the anodic dissolution of chromium present in UNS S31254 stainless steel (SS) in 0.15 mol L−1 NaCl at 37.0 ± 0.5 °C has been studied, using anodic potentiostatic polarization curves and optical emission spectroscopy. Electrochemical results have shown that BSA has little effect on the transpassivation potential (ET) and on the passivation current density values. However on the passivation range, BSA diminishes the intensity of the anodic wave seen at about E = 750 mV versus SCE attributed to Cr(III)/Cr(VI) oxidation. Optical emission spectroscopy results have shown that BSA prevents the anodic dissolution of chromium to occur and minimizes iron dissolution above the transpassivation potential (E = 1160 mV versus SCE).
Keywords
Austenitic stainless steel , Orthopedic implants , Corrosion , UNS S31254 , Bovine serum albumin
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year
2008
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Record number
1796351
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