A new nanoparticle penetrant used for plasma electrolytic oxidation film coated on AZ31 Mg alloy in service environment

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	A new nanoparticle penetrant used for plasma electrolytic oxidation film coated on AZ31 Mg alloy in service environment
	X. H. Guo; K. Q. Du; Y. Q. Wang; Y. W. Shao; F. H. Wang
	2012
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	206 期号:23 页码:4833-4839
摘要	A new penetrant of improved self-assembled nanophase particle (SANP) solution was used to protect AZ31 Mg alloy with plasma electrolytic oxidation (PEO) film in the service environment. The improved SANP technique was carried out by increasing water concentration, prolonging hydrolytic time, reducing solution acidity and adding phytic acid (PAH) inhibitor. Properties of the improved SANP solution and the PEO + SANP film were evaluated by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and potentiodynamic polarization. Service performance of the PEO + fluorocarbon (FC) paint treated by the improved SANP technique was estimated by thermal shock method (TSM) and neutral salt spray test (NSST). Experiment results indicated that permeability of the improved SANP solution was increased obviously due to the formation of smaller nanoparticles. Uniformity and corrosion protection of the PEO + improved SANP film were further enhanced attributed to the restriction in the formation of bigger inorganic particles and the stability of the PAH inhibitor, respectively. For the composite film of PEO film + improved SANP + FC, it still had strong adhesion and good corrosion protection after the service environment tests of TSM and NSST due to the chemical combinations of SANP/PEO and SANP/FC. (C) 2012 Elsevier B.V. All rights reserved.
部门归属	[guo, xinghua; du, keqin; wang, fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang, peoples r china. [du, keqin; wang, yanqiu; shao, yawei] harbin engn univ, coll mat sci & chem engn, harbin, peoples r china.;du, kq (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang, peoples r china.;kqdu@imr.ac.cn
关键词	Self-assembled Nanophase Particle Plasma Electrolytic Oxidation Service Environment Az31 Mg Alloy Corrosion Az91d Magnesium Alloy Electrochemical Corrosion Behavior Acid Conversion Coatings Snap Surface Treatments Protection Resistance Microstructure Composite
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/59978
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. H. Guo,K. Q. Du,Y. Q. Wang,et al. A new nanoparticle penetrant used for plasma electrolytic oxidation film coated on AZ31 Mg alloy in service environment[J]. Surface & Coatings Technology,2012,206(23):4833-4839.
APA	X. H. Guo,K. Q. Du,Y. Q. Wang,Y. W. Shao,&F. H. Wang.(2012).A new nanoparticle penetrant used for plasma electrolytic oxidation film coated on AZ31 Mg alloy in service environment.Surface & Coatings Technology,206(23),4833-4839.
MLA	X. H. Guo,et al."A new nanoparticle penetrant used for plasma electrolytic oxidation film coated on AZ31 Mg alloy in service environment".Surface & Coatings Technology 206.23(2012):4833-4839.