Corrosion resistance of Mg-5Al-xSr alloys

N. D. Nam; W. C. Kim; J. G. Kim; K. S. Shin; H. C. Jung

doi:10.1016/j.jallcom.2011.01.187

Corrosion resistance of Mg-5Al-xSr alloys

N. D. Nam
, W. C. Kim
, J. G. Kim
, K. S. Shin
, H. C. Jung

Department of Advanced Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Four types of Mg-5Al alloy with various weight percentages of Sr ranging from 0 to 1.5 wt% were examined using electrochemical techniques and surface analyses. The electrochemical results indicated that the Mg-5Al alloy containing Sr to have a higher pitting potential and impedance than the Mg-5Al specimen with highest value being observed in the Mg-5Al-1Sr specimen. Sr addition induced the continuous precipitation of Al-Sr phases along with grain refinement and increased the formation of an Al(OH)₃ film on the surface.

Original language	English
Pages (from-to)	4839-4847
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	14
DOIs	https://doi.org/10.1016/j.jallcom.2011.01.187
State	Published - 7 Apr 2011

Keywords

Alkaline corrosion
EIS
Magnesium alloy
Passive film
Pitting corrosion
Polarization

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10.1016/j.jallcom.2011.01.187

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title = "Corrosion resistance of Mg-5Al-xSr alloys",

abstract = "Four types of Mg-5Al alloy with various weight percentages of Sr ranging from 0 to 1.5 wt\% were examined using electrochemical techniques and surface analyses. The electrochemical results indicated that the Mg-5Al alloy containing Sr to have a higher pitting potential and impedance than the Mg-5Al specimen with highest value being observed in the Mg-5Al-1Sr specimen. Sr addition induced the continuous precipitation of Al-Sr phases along with grain refinement and increased the formation of an Al(OH)3 film on the surface.",

keywords = "Alkaline corrosion, EIS, Magnesium alloy, Passive film, Pitting corrosion, Polarization",

author = "Nam, \{N. D.\} and Kim, \{W. C.\} and Kim, \{J. G.\} and Shin, \{K. S.\} and Jung, \{H. C.\}",

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doi = "10.1016/j.jallcom.2011.01.187",

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T1 - Corrosion resistance of Mg-5Al-xSr alloys

AU - Nam, N. D.

AU - Kim, W. C.

AU - Kim, J. G.

AU - Shin, K. S.

AU - Jung, H. C.

PY - 2011/4/7

Y1 - 2011/4/7

N2 - Four types of Mg-5Al alloy with various weight percentages of Sr ranging from 0 to 1.5 wt% were examined using electrochemical techniques and surface analyses. The electrochemical results indicated that the Mg-5Al alloy containing Sr to have a higher pitting potential and impedance than the Mg-5Al specimen with highest value being observed in the Mg-5Al-1Sr specimen. Sr addition induced the continuous precipitation of Al-Sr phases along with grain refinement and increased the formation of an Al(OH)3 film on the surface.

AB - Four types of Mg-5Al alloy with various weight percentages of Sr ranging from 0 to 1.5 wt% were examined using electrochemical techniques and surface analyses. The electrochemical results indicated that the Mg-5Al alloy containing Sr to have a higher pitting potential and impedance than the Mg-5Al specimen with highest value being observed in the Mg-5Al-1Sr specimen. Sr addition induced the continuous precipitation of Al-Sr phases along with grain refinement and increased the formation of an Al(OH)3 film on the surface.

KW - Alkaline corrosion

KW - EIS

KW - Magnesium alloy

KW - Passive film

KW - Pitting corrosion

KW - Polarization

UR - https://www.scopus.com/pages/publications/79952439557

U2 - 10.1016/j.jallcom.2011.01.187

DO - 10.1016/j.jallcom.2011.01.187

M3 - Article

AN - SCOPUS:79952439557

SN - 0925-8388

VL - 509

SP - 4839

EP - 4847

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 14

ER -

Corrosion resistance of Mg-5Al-xSr alloys

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Keywords

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