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on the study about cathodic potentiodynamic diagrams, electrochemical impedance diagrams and differential capacitance curves, the effect of temperature on diffuse double layer was analyzed, and then the change... that, with temperature increasing from 30 ℃, 40 ℃ to 60 ℃, the cathodic potentiodynamic of composite system decreases. At the same time, Faraday resistance decreases from17.3 Ω, 5.2 Ω to 3.0 Ω......
, chemical composition and corrosion resistance of the coatings were investigated using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Tafel polarization measurements and neutral... coatings increases with phosphating time up to 300 s.
Key words: galvanized steel; phosphate coatings; molybdate; corrosion resistance; polarization curve
of as-cast and extruded Mg-5Y-7Gd-1Nd-0.5Zr Mg alloys were discussed. Key words: Mg-5Y-7Gd-1Nd-0.5Zr magnesium alloy; corrosion morphology; polarization curve 1 Introduction Mg and Mg alloys...% nitric acid in alcohol. 2.3 Electrochemical measurements The open circuit potential and the polarization curves were obtained in 5% NaCl solution saturated with Mg(OH)2 using a Potentioatat/Galvanostat......Comparative study on corrosion behavior of as-cast and extruded Mg-5Y-7Gd-1Nd-0.5Zr alloy in 5% NaCl aqueous solution
来源： 《中国有色金属学报(英文版)2012年第5期》——张新 张奎 李兴刚 邓霞 李宏伟 张宝东 王长顺
alloys in 3.5% NaCl solution 图3 镁合金及MAO涂层样品在3.5%NaCl溶液中的线性极化曲线 Fig. 3 Linear polarization curves of bare and MAO coated Mg alloys in 3.5% NaCl solution 表2 空白镁合金及MAO涂层样品的Tafel曲线拟合参数和孔隙率...-grown coatings[J]. Applied Surface Science, 2004, 233(1/4): 105-114. [18] LINS V D F C, REIS G F D A, ARAUJO C R D, MATENCIO T. Electrochemical impedance spectroscopy and linear polarization applied......
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Abstract: The corrosion behavior of a copper-based shape memory alloy (Cu-Al-Mn-Zn-Zr) in 3.5 wt.% NaCl solution was investigated by means of potentiodynamic polarization measurements, electrochemical... annealing temperatures was characterized by potentiodynamic polarization measurements, electrochemical impedance spectroscopy (EIS) and X-ray photoelectron spectroscopy (XPS). The corrosion mechanism......
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, Erosion and Surface Technology, University of Science and Technology Beijing, Beijing 100083, China) Abstract: The relationship between anodic polarization of etched Al foils and performance... of tunnels under passivation. The anodic polarization curves in HCl solution are characteristic of a pitting potential and a narrow passivation range. When the etching current in HCl solution is above......
+, pH of solutions and the scanning speed of potential on the polarization curves of Fe electrode. The three optimum values were given from experimental data. Based on the relationship of peak potential, peak current density and scanning speed, it is found that the electrochemical process is irreversible. Key words: linear sweep voltammetry; polarization curve; chromium residue solution ......
temperatures were investigated by polarization curve, XRD, SEM and EDS. The results show that the corrosion of ZAT10 alloy contains general corrosion and intergranular corrosion in tap water and 3.5% NaCl... and velocity of the tensile strength are greater in 3.5% NaCl solution than those in water.Key words:deformation zinc alloy; ZAT10 alloy; corrosion; polarization curve; mechanical property......
