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Effect of erbium modification on the microstructure, mechanical and corrosion characteristics of binary Mg-Al alloys

Research output: Journal contributions › Journal articles › Research › peer-review

Standard

Effect of erbium modification on the microstructure, mechanical and corrosion characteristics of binary Mg-Al alloys. / Seetharaman, Sankaranarayanan; Blawert, Carsten; Ng, Baoshu Milton et al.
In: Journal of Alloys and Compounds, Vol. 648, 34680, 05.11.2015, p. 759-770.

Research output: Journal contributions › Journal articles › Research › peer-review

Harvard

Seetharaman, S, Blawert, C, Ng, BM, Wong, WLE, Goh, CS, Hort, N & Gupta, M 2015, 'Effect of erbium modification on the microstructure, mechanical and corrosion characteristics of binary Mg-Al alloys', Journal of Alloys and Compounds, vol. 648, 34680, pp. 759-770. https://doi.org/10.1016/j.jallcom.2015.05.284

APA

Seetharaman, S., Blawert, C., Ng, B. M., Wong, W. L. E., Goh, C. S., Hort, N., & Gupta, M. (2015). Effect of erbium modification on the microstructure, mechanical and corrosion characteristics of binary Mg-Al alloys. Journal of Alloys and Compounds, 648, 759-770. Article 34680. https://doi.org/10.1016/j.jallcom.2015.05.284

Vancouver

Seetharaman S, Blawert C, Ng BM, Wong WLE, Goh CS, Hort N et al. Effect of erbium modification on the microstructure, mechanical and corrosion characteristics of binary Mg-Al alloys. Journal of Alloys and Compounds. 2015 Nov 5;648:759-770. 34680. doi: 10.1016/j.jallcom.2015.05.284

Bibtex

@article{6483e76aeac14d22a081f4b135a2a753,
title = "Effect of erbium modification on the microstructure, mechanical and corrosion characteristics of binary Mg-Al alloys",
abstract = "Abstract In this study, new erbium modified Mg-Al alloys were developed by integrating trace erbium (in the form of Al94.67Er5.33 master alloy) into pure Mg using disintegrated melt deposition technique. The developed Er- modified Mg-Al alloys were investigated for their microstructural, mechanical and corrosion characteristics in comparison with their unmodified counterparts. Microstructural investigation revealed (i) improved purity, (ii) (marginal) grain refinement, (iii) more uniform second phase distribution and (iv) Al3Er phase formation due to Er modification. Mechanical property measurements revealed an overall enhancement under indentation, tension and compression loads. A remarkable improvement in tensile ductility (without adverse effects on strength) by +19%, +29%, and +58% was obtained in Mg-3Al-0.1Er, Mg-6Al-0.3Er and Mg-9Al-0.5Er when compared to Mg-3Al, Mg-6Al and Mg-9Al respectively. While the Mg-6Al-0.3Er alloy exhibited best ductility, the Mg-9Al-0.5Er has the best strength under both tension and compression loads. Corrosion characteristics evaluated by hydrogen evolution, salt spray and electrochemical impedance experiments revealed improved corrosion resistance of Er modified Mg-Al alloys by the enhanced purity levels and the formation of Al-Er phases.",
keywords = "Corrosion, Er modification, Mechanical properties, Mg-Al alloys, Microstructure, Engineering",
author = "Sankaranarayanan Seetharaman and Carsten Blawert and Ng, {Baoshu Milton} and Wong, {Wai Leong Eugene} and Goh, {Chwee Sim} and Norbert Hort and Manoj Gupta",
year = "2015",
month = nov,
day = "5",
doi = "10.1016/j.jallcom.2015.05.284",
language = "English",
volume = "648",
pages = "759--770",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier B.V.",

}

RIS

TY - JOUR

T1 - Effect of erbium modification on the microstructure, mechanical and corrosion characteristics of binary Mg-Al alloys

AU - Seetharaman, Sankaranarayanan

AU - Blawert, Carsten

AU - Ng, Baoshu Milton

AU - Wong, Wai Leong Eugene

AU - Goh, Chwee Sim

AU - Hort, Norbert

AU - Gupta, Manoj

PY - 2015/11/5

Y1 - 2015/11/5

N2 - Abstract In this study, new erbium modified Mg-Al alloys were developed by integrating trace erbium (in the form of Al94.67Er5.33 master alloy) into pure Mg using disintegrated melt deposition technique. The developed Er- modified Mg-Al alloys were investigated for their microstructural, mechanical and corrosion characteristics in comparison with their unmodified counterparts. Microstructural investigation revealed (i) improved purity, (ii) (marginal) grain refinement, (iii) more uniform second phase distribution and (iv) Al3Er phase formation due to Er modification. Mechanical property measurements revealed an overall enhancement under indentation, tension and compression loads. A remarkable improvement in tensile ductility (without adverse effects on strength) by +19%, +29%, and +58% was obtained in Mg-3Al-0.1Er, Mg-6Al-0.3Er and Mg-9Al-0.5Er when compared to Mg-3Al, Mg-6Al and Mg-9Al respectively. While the Mg-6Al-0.3Er alloy exhibited best ductility, the Mg-9Al-0.5Er has the best strength under both tension and compression loads. Corrosion characteristics evaluated by hydrogen evolution, salt spray and electrochemical impedance experiments revealed improved corrosion resistance of Er modified Mg-Al alloys by the enhanced purity levels and the formation of Al-Er phases.

AB - Abstract In this study, new erbium modified Mg-Al alloys were developed by integrating trace erbium (in the form of Al94.67Er5.33 master alloy) into pure Mg using disintegrated melt deposition technique. The developed Er- modified Mg-Al alloys were investigated for their microstructural, mechanical and corrosion characteristics in comparison with their unmodified counterparts. Microstructural investigation revealed (i) improved purity, (ii) (marginal) grain refinement, (iii) more uniform second phase distribution and (iv) Al3Er phase formation due to Er modification. Mechanical property measurements revealed an overall enhancement under indentation, tension and compression loads. A remarkable improvement in tensile ductility (without adverse effects on strength) by +19%, +29%, and +58% was obtained in Mg-3Al-0.1Er, Mg-6Al-0.3Er and Mg-9Al-0.5Er when compared to Mg-3Al, Mg-6Al and Mg-9Al respectively. While the Mg-6Al-0.3Er alloy exhibited best ductility, the Mg-9Al-0.5Er has the best strength under both tension and compression loads. Corrosion characteristics evaluated by hydrogen evolution, salt spray and electrochemical impedance experiments revealed improved corrosion resistance of Er modified Mg-Al alloys by the enhanced purity levels and the formation of Al-Er phases.

KW - Corrosion

KW - Er modification

KW - Mechanical properties

KW - Mg-Al alloys

KW - Microstructure

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84937597755&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2015.05.284

DO - 10.1016/j.jallcom.2015.05.284

M3 - Journal articles

AN - SCOPUS:84937597755

VL - 648

SP - 759

EP - 770

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

M1 - 34680

ER -

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