The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys

Andrzej Kielbus; Tomasz Rzychon; Joanna Michalska; Michal Stopyra

doi:10.4028/www.scientific.net/DDF.326-328.255

The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys

Silesian University of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

In this paper, the corrosion resistance of two sand-casting creep resistant magnesium alloys Mg-9Al-1.5Ca-0.3Sr and Mg-9Al-2.2Ca-0.8Sr in the salt environment has been investigated. Specimens of each alloy has been immersed in 3.5% NaCl solution at room temperature and successively taken out after 1, 2, 4, 5 and 9 days. After immersion test, the microstructure and the appearances of the corroded structure were examined. The corrosion rates of both investigated alloys increased lineally with increasing the exposure time in both solutions. Mg-9Al-1.5Ca-0.3Sr alloy exhibits the higher corrosion rate during the immersion test than Mg-9Al-2.2Ca-0.8Sr. The corrosion layer of both alloys consists of MgO, MgOH and phases containing Cl, Na, Al and Ca. The increase of Ca content in the Mg-9Al-2.2Ca-0.8Sr alloy improved the corrosion resistance due to the formation of the reticular (Mg,Al)₂Ca phase, which acted as an effective barrier against corrosion.

Original language	English
Title of host publication	Diffusion in Solids and Liquids VII
Subtitle of host publication	Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials
Publisher	Trans Tech Publications Ltd.
Pages	255-260
Number of pages	6
Volume	326-328
ISBN (Print)	9783037854006
DOIs	https://doi.org/10.4028/www.scientific.net/DDF.326-328.255
Publication status	Published - 2012
Event	7th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2011 - Algarve, Portugal Duration: 26 Jun 2011 → 30 Jun 2011

Conference

Conference	7th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2011
Country/Territory	Portugal
City	Algarve
Period	26/06/11 → 30/06/11

Keywords

Corrosion
Mg-Al-Ca-Sr magnesium alloys
Microstructure
Sand casting

ASJC Scopus subject areas

Radiation
General Materials Science
Condensed Matter Physics

Access to Document

10.4028/www.scientific.net/DDF.326-328.255

Cite this

Kielbus, A., Rzychon, T., Michalska, J., & Stopyra, M. (2012). The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys. In Diffusion in Solids and Liquids VII: Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials (Vol. 326-328, pp. 255-260). Trans Tech Publications Ltd.. https://doi.org/10.4028/www.scientific.net/DDF.326-328.255

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title = "The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys",

abstract = "In this paper, the corrosion resistance of two sand-casting creep resistant magnesium alloys Mg-9Al-1.5Ca-0.3Sr and Mg-9Al-2.2Ca-0.8Sr in the salt environment has been investigated. Specimens of each alloy has been immersed in 3.5\% NaCl solution at room temperature and successively taken out after 1, 2, 4, 5 and 9 days. After immersion test, the microstructure and the appearances of the corroded structure were examined. The corrosion rates of both investigated alloys increased lineally with increasing the exposure time in both solutions. Mg-9Al-1.5Ca-0.3Sr alloy exhibits the higher corrosion rate during the immersion test than Mg-9Al-2.2Ca-0.8Sr. The corrosion layer of both alloys consists of MgO, MgOH and phases containing Cl, Na, Al and Ca. The increase of Ca content in the Mg-9Al-2.2Ca-0.8Sr alloy improved the corrosion resistance due to the formation of the reticular (Mg,Al)2Ca phase, which acted as an effective barrier against corrosion.",

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author = "Andrzej Kielbus and Tomasz Rzychon and Joanna Michalska and Michal Stopyra",

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Kielbus, A , Rzychon, T , Michalska, J & Stopyra, M 2012, The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys. in Diffusion in Solids and Liquids VII: Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials. vol. 326-328, Trans Tech Publications Ltd., pp. 255-260, 7th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2011, Algarve, Portugal, 26/06/11. https://doi.org/10.4028/www.scientific.net/DDF.326-328.255

The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys. / Kielbus, Andrzej ; Rzychon, Tomasz ; Michalska, Joanna et al.
Diffusion in Solids and Liquids VII: Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials. Vol. 326-328 Trans Tech Publications Ltd., 2012. p. 255-260.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys

AU - Kielbus, Andrzej

AU - Rzychon, Tomasz

AU - Michalska, Joanna

AU - Stopyra, Michal

PY - 2012

Y1 - 2012

N2 - In this paper, the corrosion resistance of two sand-casting creep resistant magnesium alloys Mg-9Al-1.5Ca-0.3Sr and Mg-9Al-2.2Ca-0.8Sr in the salt environment has been investigated. Specimens of each alloy has been immersed in 3.5% NaCl solution at room temperature and successively taken out after 1, 2, 4, 5 and 9 days. After immersion test, the microstructure and the appearances of the corroded structure were examined. The corrosion rates of both investigated alloys increased lineally with increasing the exposure time in both solutions. Mg-9Al-1.5Ca-0.3Sr alloy exhibits the higher corrosion rate during the immersion test than Mg-9Al-2.2Ca-0.8Sr. The corrosion layer of both alloys consists of MgO, MgOH and phases containing Cl, Na, Al and Ca. The increase of Ca content in the Mg-9Al-2.2Ca-0.8Sr alloy improved the corrosion resistance due to the formation of the reticular (Mg,Al)2Ca phase, which acted as an effective barrier against corrosion.

AB - In this paper, the corrosion resistance of two sand-casting creep resistant magnesium alloys Mg-9Al-1.5Ca-0.3Sr and Mg-9Al-2.2Ca-0.8Sr in the salt environment has been investigated. Specimens of each alloy has been immersed in 3.5% NaCl solution at room temperature and successively taken out after 1, 2, 4, 5 and 9 days. After immersion test, the microstructure and the appearances of the corroded structure were examined. The corrosion rates of both investigated alloys increased lineally with increasing the exposure time in both solutions. Mg-9Al-1.5Ca-0.3Sr alloy exhibits the higher corrosion rate during the immersion test than Mg-9Al-2.2Ca-0.8Sr. The corrosion layer of both alloys consists of MgO, MgOH and phases containing Cl, Na, Al and Ca. The increase of Ca content in the Mg-9Al-2.2Ca-0.8Sr alloy improved the corrosion resistance due to the formation of the reticular (Mg,Al)2Ca phase, which acted as an effective barrier against corrosion.

KW - Corrosion

KW - Mg-Al-Ca-Sr magnesium alloys

KW - Microstructure

KW - Sand casting

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U2 - 10.4028/www.scientific.net/DDF.326-328.255

DO - 10.4028/www.scientific.net/DDF.326-328.255

M3 - Conference contribution

AN - SCOPUS:84860810277

SN - 9783037854006

VL - 326-328

SP - 255

EP - 260

BT - Diffusion in Solids and Liquids VII

PB - Trans Tech Publications Ltd.

T2 - 7th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2011

Y2 - 26 June 2011 through 30 June 2011

ER -

Kielbus A , Rzychon T , Michalska J, Stopyra M. The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys. In Diffusion in Solids and Liquids VII: Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials. Vol. 326-328. Trans Tech Publications Ltd. 2012. p. 255-260 doi: 10.4028/www.scientific.net/DDF.326-328.255

The corrosion resistance of the Mg-Al-Ca-Sr sand casting magnesium alloys

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Keywords

ASJC Scopus subject areas

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