The effect of grain size on the corrosion inhibitor adsorption of nanocrystalline iron metal

Abstract The effect of grain size reduction on the corrosion inhibitor adsorption of nanocrystalline Fe produced by pulse electrodeposition was characterized using tafel polarization curves and electrochemical impedance spectroscopy. The grain size of a nanocrystalline surface was determined by means of scanning electron microscopy. The tests were carried out in 0.1 M sodium perchlorate (NaClO4) and 0.1 M sodium sulphate (Na2SO4) aqueous solutions separately. Results obtained revealed that the inhibition effect and corrosion protection of sodium nitrite inhibitor in near-neutral aqueous solutions increased as the grain size decreased from microcrystalline to nanocrystalline. This was attributed to the increased number of the active sites caused by nanocrystalline surface.

[1]  K. Mohana,et al.  Effect of sodium nitrite–borax blend on the corrosion rate of low carbon steel in industrial water medium , 2008 .

[2]  H. Vehoff,et al.  The deformation behaviour of electrodeposited nanocrystalline Ni in an atomic force microscope with a newly developed in situ bending machine , 2006 .

[3]  N. Schell,et al.  An approach to cyclic plasticity and deformation-induced structure changes of electrodeposited nickel , 2005 .

[4]  V. Stolyarov,et al.  Corrosion resistance of ultra fine-grained Ti , 2004 .

[5]  Yuhan Sun,et al.  Preparation and Catalytic Performance of Mesostructured Aluminosilicate Nano-particles with Wormhole-Like Framework Structure , 2004 .

[6]  Francesca Guidi,et al.  Tryptamine as a green iron corrosion inhibitor in 0.5 M deaerated sulphuric acid , 2004 .

[7]  P. Bowen,et al.  From powders to sintered pieces: forming, transformations and sintering of nanostructured ceramic oxides , 2002 .

[8]  P. Goeuriot,et al.  Solid state sintering and high temperature compression properties of Al-alloy5000/AlN nanocomposites , 2001 .

[9]  P. Ross,et al.  Reversible Li Deposition on Ni in Ultrahigh Vacuum , 1995 .

[10]  C. Schiller,et al.  Impedance studies of the oxide layer on zircaloy after previous oxidation in water vapour at 400°C , 1993 .

[11]  G. Palumbo,et al.  The corrosion behaviour of nanocrystalline nickel , 1991 .

[12]  K. Niihara.  New Design Concept of Structural Ceramics , 1991 .

[13]  D. Geanǎ,et al.  A theoretical treatment of the kinetics of iron dissolution and passivation , 1975 .

[14]  G. Bech-Nielsen.  The anodic dissolution of iron—V. Some observations regarding the influence of cold working and of annealing on the two anodic reactions of the metal , 1974 .

[15]  W. J. Lorenz,et al.  Einfluß des Metallsubgefüges auf den anodischen Auflösungsmechanismus von Eisen , 1974 .

[16]  Y. Miyoshi,et al.  Correlations between the Kinetics of Electrolytic Dissolution and Deposition of Iron II . The Cathodic Deposition of Iron , 1971 .

[17]  R. E. Patterson,et al.  Electrochemical Characteristics of Iron During Corrosion: Effect of Heat Treatment and Purity , 1970 .

[18]  W. J. Lorenz,et al.  Einfluß der oberflächenaktivität auf die anodischen auflösungsmechanismen von eisen in sauren lösungen , 1968 .

[19]  U. Ebersbach,et al.  On the kinetics of the anodic passivation of iron, cobalt and nickel , 1967 .

[20]  J. O'm. Bockris,et al.  The electrode kinetics of the deposition and dissolution of iron , 1961 .

[21]  N. Hackerman,et al.  Iron corrosion inhibition with dihydrobis‐ and hydrotris‐(1‐pyrazolyl)borates , 2006 .

[22]  W. J. Lorenz,et al.  Über den Zusammenhang zwischen Metall-Subgefüge und dem anodischen Auflösungsmechanismus des Eisens in sauren Lösungen , 2004, Naturwissenschaften.

[23]  A. Popova,et al.  AC and DC study of the temperature effect on mild steel corrosion in acid media in the presence of benzimidazole derivatives , 2003 .

[24]  V. Katalinić,et al.  Aqueous extract of Rosmarinus officinalis L. as inhibitor of Al–Mg alloy corrosion in chloride solution , 2000 .

[25]  H. Gleiter,et al.  Nanostructured materials: basic concepts and microstructure☆ , 2000 .

[26]  N. McIntyre,et al.  XPS characterization of the passive films formed on nanocrystalline nickel in sulphuric acid , 1994 .

[27]  Don M. Parkin,et al.  Mechanical Properties and Deformation Behavior of Materials Having Ultra-Fine Microstructures , 1993 .

[28]  H. Bala.  The corrosion of iron in sulphate solutions at pH = 0–2 , 1984 .

[29]  A. Anderson,et al.  Mechanism of Iron dissolution and passivation in an aqueous environment: Active and transition ranges , 1983 .

[30]  G H Ettinger,et al.  Queen's University. , 1962, Canadian Medical Association journal.