Corrosion and wettability of PEO coatings on magnesium by addition of potassium stearate

作     者：S.S.Farhadi M.Aliofkhazraei Gh.Barati Darband A.Abolhasani A.Sabour Rouhaghdam 

作者机构：Department of Materials ScienceFaculty of EngineeringTarbiat Modares UniversityP.O.Box:14115-143TehranIran 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2017年第5卷第2期

页      面：210-216页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Magnesium Coatings Wilhelmy plate Plasma electrolytic oxidation Corrosion 

摘      要：Hydrophobic PEO coatings were fabricated in an electrolyte containing potassium *** wetting behaviour of coated samples was studied using dynamic and static contact ***,the corrosion behaviour of the samples was evaluated by polarization *** dynamic contact angle and hysteresis of the contact angle for PEO coating were evaluated by Wilhelmy plate *** was an increase in the contact angle of the nanocomposite and traditional PEO coatings when potassium stearate was added to the electrolyte up to 130°.The more hydrophobic coatings,showed more corrosion resistance in 3.5 wt.%NaCl *** synergistic effect of potassium stearate and nanoparticles increased the hydrophobicity because of assembling of fatty acid on ceramic powder.