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of 7050-T7451 Al alloy thick plate was studied using immersion tests, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), slow strain rate testing (SSRT) technique combined... cooling rate results from the higher coverage rate of grain boundary precipitates and larger width of precipitate free zone.Key words:aluminium; polarization; electrochemical impedance spectroscopy......
Impedance spectroscopy study of high-temperature oxidation of Gd2O3-Yb2O3 codoped zirconia thermal barrier coatings ZHANG Dan-hua, GUO Hong-bo, GONG Sheng-kai School of Materials Science... spectroscopy (IS) combined with scanning electron microscopy (SEM), Raman spectroscopy and X-ray diffractometry (XRD). Various electrical responses observed in the impedance spectra corresponding to GY-YSZ......
and NK30-T6. The corrosion potentials of NK30 increase in the following order: F＜T4＜T6. The results of electrochemical impedance spectroscopy (EIS) also confirm that the corrosion film of NK30-F plays a more protective role than that of NK30-T4 and NK30-T6. Key words: Mg-Nd-Zr alloy; corrosion behaviour; heat treatment; potentiodynamic polarization; electrochemical impedance spectroscopy ......
, electrochemical impedance spectroscopy methods. The potentiodynamic polarization curve shows that Schiff base AC inhibits both anodic and cathodic reactions at all concentration, which indicates... on the corrosion behavior of milled and unmilled magnesium by electrochemical impedance spectroscopy [J]. Corrosion Science, 2004, 46: 3041-3055. [25] ASHASSI-SORKHABI H, SHAABANI B, SEIFZADEH D. Effect......
solution. The electrochemical behavior of the coatings was studied by means of zeta potential analysis, voltammetry and electrochemical impedance spectroscopy (EIS). It was found that the zeta potential... and Gugleilmi’s model. To our knowledge, this mechanism has not been studied by electrochemical impedance spectroscopy (EIS). Hence, the present work deals with a more complete electrochemical study......
surface, while HQS is a corrosion accelerator by activating the cathodic reaction. Changes of the impedance parameters in the electrochemical impedance spectroscopy(EIS) are related to the adsorption...; electrochemical impedance spectroscopy ......
behavior of Al-3.5Cu-1.5Li-0.22(Sc+Zr) alloy under various treatment conditions was investigated by exfoliation corrosion tests and electrochemical impedance spectroscopy (EIS) tests. The results show... corrosion; electrochemical impedance spectroscopy 铝锂合金具有密度低,弹性模量,比强度和比刚度高等优点,在航空,航天......
the processing time and temperature. The anti-corrosive performance of coatings was studied by electrochemical impedance spectroscopy and potentiodynamic polarization curves, the microscopic...: chemical conversion coating; phosphate; stannate; corrosion; electrochemical impedance spectroscopy ......
; Abstract: The corrosion properties of AZ31 magnesium alloys were studied by potentiodynamic polarization curves and electrochemical impedance spectroscopy(EIS... is pitting. Key words: AZ31 magnesium alloy; corrosion; chemical conversion layer; anodization; electrochemical impedance spectroscopy ......
21 July 2011 Abstract: The corrosion behaviors and corresponding electrochemical impedance spectroscopy (EIS) and polarization curves of pure Mg in neutral 1.0% NaCl solution were investigated... with the metal surface. Key words: pure Mg; corrosion; electrochemical impedance spectroscopy (EIS); fractal dimension 1 Introduction Mg is one of the most active and lightest metals. In particular, its high......
