Effect of Various Additives on Performance of Plasma Electrolytic Oxidation Coatings Formed on AZ31 Magnesium Alloy in the Phosphate Electrolytes

被引：4

作者：

庄俊杰 ^{[1
,2
,3
]}

宋仁国 ^{[1
,2
,3
]}

LI Hongxia ^{[4
]}

XIANG Nan ^{[1
,2
,3
]}

机构：

[1] School of Materials Science and Engineering, Changzhou University

[2] Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University

[3] Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University

[4] College of Materials and Environmental Engineering, Hangzhou Dianzi University

来源：

JournalofWuhanUniversityofTechnology(MaterialsScience) | 2018年 / 33卷 / 03期

关键词：

magnesium alloy; plasma electrolytic oxidation; additives; microstructure; corrosion resistance;

D O I：

暂无

中图分类号：

TG174.451 [氧化法];

学科分类号：

080503 ;

摘要：

Plasma electrolytic oxidation（PEO） coatings were prepared on AZ31 magnesium alloy using alkaline phosphate as base electrolyte system, and with the addition of sodium silicate（Na2SiO3）, sodium aluminate（NaAlO2） and potassium fluorozirconate（K2ZrF6） as additives. The microstructure, phase composition and element composition as well as surface profile of the PEO coatings were analyzed by means of scanning electron microscopy（SEM）, X-ray diffraction（XRD）, energy dispersive X-ray spectroscopy（EDS）, and threedimensional（3 D） optical profilometry. The corrosion and wear properties were evaluated by electrochemical potentiodynamic polarization in 3.5 wt% Na Cl solution and ball-on-disc wear tests, respectively. The results showed that the anions of the additives effectively participated in the coating formation influencing its microstructural features, chemical composition, corrosion resistance and tribological behaviour. It was observed that the sample treated by PEO in the electrolyte solution containing K2ZrF6 as an additive showed better corrosion and abrasive resistance.

引用

页码：703 / 709

页数：7

共 24 条

[1] Characterization and Properties of Duplex a-C:H/MAO Coatings on Magnesium Alloy using Combined Microarc Oxidation and Hybrid Magnetron Sputtering [J].

杨巍 ;

DENG Zhennan ;

YANG Zhong ;

LI Jianping ;

汪爱英 .

JournalofWuhanUniversityofTechnology(MaterialsScienceEdition), 2015, 30 (04) :822-826

[2]

Microstructure and Corrosion Resistance of Modified AZ31 Magnesium Alloy Using Microarc Oxidation Combined with Electrophoresis Process[J]. 杨巍,WANG Ping,郭永春,JIANG Bailing,YANG Fei,LI Jianping.Journal of Wuhan University of Technology(Materials Science Edition). 2013(03)

[3]

Behavior of Stress Corrosion Cracking in a Magnesium Alloy[J]. 宋仁国.Journal of Wuhan University of Technology(Materials Science Edition). 2009(01)

[4]

Corrosion Protection of AM50 Magnesium Alloy by Nafion/DMSO Organic Coatings[J]. SONG Renguo~1 ZHENG Xiaohua~1 BAI Shuju~2 BLAWERT Carsten~3 DIETZEL Wolfgang~3 (1.The MOE Key Laboratory of Mechanical Manufacture and Automation,Zhejiang University of Technology,Hangzhou 310014,China;2.Tieling Base Property Company of NEPPC,Tieling 112001,China;3.Institute of Materials Research,GKSS-Forschungszentrum Geesthacht GmbH,Geesthacht D-21502,Germany).Journal of Wuhan University of Technology(Materials Sc

[5]

Electrochemical corrosion properties of CeO 2 -containing coatings on AZ31 magnesium alloys prepared by plasma electrolytic oxidation[J] . Tae Seop Lim,Hyun Sam Ryu,Seong-Hyeon Hong.Corrosion Science . 2012

[6] Effect of various additives on morphology and corrosion behavior of ceramic coatings developed on AZ31 magnesium alloy by plasma electrolytic oxidation [J].

Sreekanth, D. ;

Rameshbabu, N. ;

Venkateswarlu, K. .

CERAMICS INTERNATIONAL, 2012, 38 (06) :4607-4615

[7] Preparation and characterization of anodic films on AZ31B Mg alloy formed in the silicate electrolytes with ethylene glycol oligomers as additives [J].

Zhu, Feng ;

Wang, Jinwei ;

Li, Shanghua ;

Zhang, Jin .

APPLIED SURFACE SCIENCE, 2012, 258 (22) :8985-8990

[8] Influence of sodium borate concentration on properties of anodic coatings obtained by micro arc oxidation on magnesium alloys [J].

Zhang, R. F. ;

Zhang, S. F. ;

Shen, Y. L. ;

Zhang, L. H. ;

Liu, T. Z. ;

Zhang, Y. Q. ;

Guo, S. B. .

APPLIED SURFACE SCIENCE, 2012, 258 (17) :6602-6610

[9]

Effect of K 2 TiF 6 and Na 2 B 4 O 7 as electrolyte additives on pore morphology and corrosion properties of plasma electrolytic oxidation coatings on ZM21 magnesium alloy[J] . D. Sreekanth,N. Rameshbabu,K. Venkateswarlu,Ch. Subrahmanyam,L. Rama Krishna,K. Prasad Rao.Surface & Coatings Technology . 2012

[10] Environmentally assisted cracking behaviour of plasma electrolytic oxidation coated AZ31 magnesium alloy [J].

Srinivasan, P. Bala ;

Liang, J. ;

Blawert, C. ;

Dietzel, W. .

CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2011, 46 (06) :706-711

← 1 2 3 →