Corrosion Protection Enhancement on Aluminum Alloy And Magnesium Alloy by Mo-CeO2 conversion coating

IF 2.4 Q3 CHEMISTRY, MULTIDISCIPLINARY

Moroccan Journal of Chemistry Pub Date : 2021-10-03 DOI:10.48317/IMIST.PRSM/MORJCHEM-V9I3.27828

A. Ziouche, A. Hammouda, N. Boucherou, M. Mokhtari, B. Hafez, H. Elmsellem, S. Abaidia

引用次数: 4

Abstract

Abstract In this paper, Mo-CeO 2 conversion coating was developed to protect Aluminum 2024 alloy and Magnesium AZ31 alloy against corrosion. The cerium oxide was incorporated in Molybdenum conversion coating which is considered as a promising alternative to replace chromate compounds. The corrosion efficacy was improving and has been characterized by polarization curves and EIS measurements. The structural and the microstructural Mo-CeO 2 conversion coating was characterized by AFM, SEM and XRD and the mechanical proprieties was determined by nano indentation. The presence of molybdenum and oxide of cerium was confirmed with good physical and mechanical proprieties. The presence of CeO 2 in the conversion coating had a beneficial effect on the corrosion resistance of the both materials.

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Mo-CeO2转化涂层增强铝合金和镁合金的防腐性能

摘要:本文研制了mo - ceo2转化涂层，用于2024铝合金和AZ31镁合金的防腐。将氧化铈掺入到钼转化涂料中，是一种很有前途的替代铬酸盐化合物的涂料。腐蚀效果得到改善，并通过极化曲线和EIS测试进行了表征。采用原子力显微镜(AFM)、扫描电镜(SEM)和x射线衍射(XRD)对mo - ce2转化涂层的结构和微观结构进行了表征，并采用纳米压痕法对其力学性能进行了表征。证实了钼和铈氧化物的存在，具有良好的物理和机械性能。在转化涂层中加入ce2对两种材料的耐腐蚀性能都有有利的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Moroccan Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

3.40

自引率

9.10%

发文量