Corrosion behavior of anodized AZ91D magnesium alloy

Houng Yu Hsiao; Wen Ta Tsai

Corrosion behavior of anodized AZ91D magnesium alloy

Houng Yu Hsiao
, Wen Ta Tsai

Research output: Contribution to journal › Conference article › peer-review

Abstract

The effect of anodization on the corrosion behavior of die-casted AZ91D Mg alloy in aqueous solution was studied. Anodization was performed in 3 M KOH + 0.21 M Na₃PO₄ + 0.6 M KF base electrolyte with and without Al(NO₃)₃ addition. The anodized film was characterized by using x-ray diffraction (XRD), scanning electron microscopy (SEM), and x-ray photoelectron spectroscopy (XPS). The corrosion resistance of the various anodized alloys was then evaluated in 3.5 wt% NaC1 solution using electrochemical impedance spectroscopy (EIS). The results showed that the anodized film was mainly composed of MgO, and the film properties were dependent on the condition of anodization process. Electrochemical testing results showed that AZ91D Mg alloy exhibited satisfactory corrosion resistance when anodized in the base electrolyte with 0.15 M Al(NO₃)₃ addition.

Original language	English
Journal	NACE - International Corrosion Conference Series
Volume	2003-April
Publication status	Published - 2003 Jan 1
Event	Corrosion 2003 - San Diego, United States Duration: 2003 Apr 16 → 2003 Apr 20

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
General Materials Science

Cite this

@article{e61e825becd642aea4f032e40c6b1b55,

title = "Corrosion behavior of anodized AZ91D magnesium alloy",

abstract = "The effect of anodization on the corrosion behavior of die-casted AZ91D Mg alloy in aqueous solution was studied. Anodization was performed in 3 M KOH + 0.21 M Na3PO4 + 0.6 M KF base electrolyte with and without Al(NO3)3 addition. The anodized film was characterized by using x-ray diffraction (XRD), scanning electron microscopy (SEM), and x-ray photoelectron spectroscopy (XPS). The corrosion resistance of the various anodized alloys was then evaluated in 3.5 wt\% NaC1 solution using electrochemical impedance spectroscopy (EIS). The results showed that the anodized film was mainly composed of MgO, and the film properties were dependent on the condition of anodization process. Electrochemical testing results showed that AZ91D Mg alloy exhibited satisfactory corrosion resistance when anodized in the base electrolyte with 0.15 M Al(NO3)3 addition.",

author = "Hsiao, \{Houng Yu\} and Tsai, \{Wen Ta\}",

year = "2003",

month = jan,

day = "1",

language = "English",

volume = "2003-April",

journal = "NACE - International Corrosion Conference Series",

issn = "0361-4409",

publisher = "NACE International",

note = "Corrosion 2003 ; Conference date: 16-04-2003 Through 20-04-2003",

}

TY - JOUR

T1 - Corrosion behavior of anodized AZ91D magnesium alloy

AU - Hsiao, Houng Yu

AU - Tsai, Wen Ta

PY - 2003/1/1

Y1 - 2003/1/1

N2 - The effect of anodization on the corrosion behavior of die-casted AZ91D Mg alloy in aqueous solution was studied. Anodization was performed in 3 M KOH + 0.21 M Na3PO4 + 0.6 M KF base electrolyte with and without Al(NO3)3 addition. The anodized film was characterized by using x-ray diffraction (XRD), scanning electron microscopy (SEM), and x-ray photoelectron spectroscopy (XPS). The corrosion resistance of the various anodized alloys was then evaluated in 3.5 wt% NaC1 solution using electrochemical impedance spectroscopy (EIS). The results showed that the anodized film was mainly composed of MgO, and the film properties were dependent on the condition of anodization process. Electrochemical testing results showed that AZ91D Mg alloy exhibited satisfactory corrosion resistance when anodized in the base electrolyte with 0.15 M Al(NO3)3 addition.

AB - The effect of anodization on the corrosion behavior of die-casted AZ91D Mg alloy in aqueous solution was studied. Anodization was performed in 3 M KOH + 0.21 M Na3PO4 + 0.6 M KF base electrolyte with and without Al(NO3)3 addition. The anodized film was characterized by using x-ray diffraction (XRD), scanning electron microscopy (SEM), and x-ray photoelectron spectroscopy (XPS). The corrosion resistance of the various anodized alloys was then evaluated in 3.5 wt% NaC1 solution using electrochemical impedance spectroscopy (EIS). The results showed that the anodized film was mainly composed of MgO, and the film properties were dependent on the condition of anodization process. Electrochemical testing results showed that AZ91D Mg alloy exhibited satisfactory corrosion resistance when anodized in the base electrolyte with 0.15 M Al(NO3)3 addition.

UR - https://www.scopus.com/pages/publications/85046846588

UR - https://www.scopus.com/pages/publications/85046846588#tab=citedBy

M3 - Conference article

AN - SCOPUS:85046846588

SN - 0361-4409

VL - 2003-April

JO - NACE - International Corrosion Conference Series

JF - NACE - International Corrosion Conference Series

T2 - Corrosion 2003

Y2 - 16 April 2003 through 20 April 2003

ER -

Corrosion behavior of anodized AZ91D magnesium alloy

Abstract

All Science Journal Classification (ASJC) codes

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