Electrochemical Impedance Spectroscopy Behavior of Nanometric Al-Cr and Cr-Al Coatings by Magnetron Sputtering

C. P. Castillo Morquecho; C. López Meléndez; M.I. Flores-Zamora; R.G. Bautista-Margulis; H. E. Esparza Ponce; F. Almeraya Calderón; C. Gaona Tiburcio; A. Martínez-Villafa?e

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Electrochemical Impedance Spectroscopy Behavior of Nanometric Al-Cr and Cr-Al Coatings by Magnetron Sputtering

机译：磁控溅射纳米Al-Cr和Cr-Al涂层的电化学阻抗谱行为

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Multilayer and bilayers structures have attracted much attention as a way of improving the mechanicaland corrosion resistance properties of protective coatings. In this work the application of nanometricAl/Cr and Cr/Al bilayers deposited on AA2024-T3, AA60601-T6 aluminum alloys and AISI 9840steel by magnetron sputtering and DC sputtering was studied. The materials were characterized byscanning electron microscopy (SEM), atomic force microscopy (AFM), transmission electronmicroscopy (TEM), X-ray diffraction (XRD) and electrochemical impedance spectroscopy (EIS) inorder to consider their application as high corrosion resistance coatings. The corrosion behavior of thefilms was studied using a NaCl aqueous solution (3.5 wt %).

机译：多层和双层结构作为改善保护涂层的机械性能和耐腐蚀性的一种方法引起了广泛的关注。在这项工作中，研究了通过磁控溅射和直流溅射在AA2024-T3，AA60601-T6铝合金和AISI 9840钢上沉积纳米Al / Cr和Cr / Al双层的应用。通过扫描电子显微镜（SEM），原子力显微镜（AFM），透射电子显微镜（TEM），X射线衍射（XRD）和电化学阻抗谱（EIS）对材料进行表征，以考虑将其用作高耐蚀涂层。使用NaCl水溶液（3.5重量％）研究了膜的腐蚀行为。

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《International Journal of Electrochemical Science》 |2012年第2期|共9页
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C. P. Castillo Morquecho; C. López Meléndez; M.I. Flores-Zamora; R.G. Bautista-Margulis; H. E. Esparza Ponce; F. Almeraya Calderón; C. Gaona Tiburcio; A. Martínez-Villafa?e;
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Electrochemical Impedance Spectroscopy Behavior of Nanometric Al-Cr and Cr-Al Coatings by Magnetron Sputtering

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