EFFECT OF ALTERNATING VOLTAGE （AV）MODULATED PASSIVATION ON CORROSION RESISTANCE OF AZ91D MAGNESIUM ALLOY
Ⅱ-Effect of Alternating Voltage (AV) Modulated Passivation on Surface Properties of AZ91D Magnesium Alloy

J Chin Soc Corr Pro

2010, Vol. 30

Issue (3): 187-191 DOI:

Research Articles

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EFFECT OF ALTERNATING VOLTAGE （AV）MODULATED PASSIVATION ON CORROSION RESISTANCE OF AZ91D MAGNESIUM ALLOY
Ⅱ-Effect of Alternating Voltage (AV) Modulated Passivation on Surface Properties of AZ91D Magnesium Alloy

LIU Xiaolan¹, XU Yaxin², ZHANG Tao¹, SHAO Yawei¹, MENG Guozhe¹, WANG Fuhui^1,2

1. Corrosion and Protection Laboratory, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001
2. State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016

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Abstract

AZ91D magnesium alloy was treated by alternating voltage (AV) modulated passivation technique. Atomic force microscopy (AFM), First ten angstroms (FTA) contact angle-meter and X-ray photoelectron spectroscopy (XPS) were employed to investigate the influence of AV-modulated passivation on the surface properties of the films formed on the AZ91D magnesium alloy after AV-modulated passivation. The results showed that a uniform and stable film was formed after AV-modulated passivation. The surface films on the samples after AV-modulated passivation consist of an inner layer rich in MgO, with a little Al₂O₃，and an outer layer of Mg(OH)₂，MgO with a little Al(OH)₃.

Key words: AZ91D magnesium alloy alternating voltage modulated passivation surface properties AFM XPS

Received: 12 January 2009

ZTFLH:

TG174.36

Corresponding Authors: ZHANG Tao E-mail: zhangtao@hrbeu.edu.cn

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LIU Xiaolan, XU Yaxin, ZHANG Tao, SHAO Yawei, MENG Guozhe, WANG Fuhui. EFFECT OF ALTERNATING VOLTAGE （AV）MODULATED PASSIVATION ON CORROSION RESISTANCE OF AZ91D MAGNESIUM ALLOY
Ⅱ-Effect of Alternating Voltage (AV) Modulated Passivation on Surface Properties of AZ91D Magnesium Alloy. J Chin Soc Corr Pro, 2010, 30(3): 187-191.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2010/V30/I3/187

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