Role of La addition for enhancing the corrosion resistance of Mg–Dy alloy

A. Prasad; Y. L. Chiu; I. P. Jones; S. S. Singh; N. N. Gosvami; J. Jain

doi:10.1080/1478422X.2021.1922811

Role of La addition for enhancing the corrosion resistance of Mg–Dy alloy

A. Prasad, Y. L. Chiu, I. P. Jones, S. S. Singh, N. N. Gosvami^*, J. Jain

^*Corresponding author for this work

Metallurgy and Materials

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

1 Citation (Scopus)

Abstract

We report the corrosion behaviour of a novel Mg–10Dy–0.7La alloy in the as-cast and solutionised conditions. The corrosion performance of binary Mg–10Dy and the new ternary Mg–10Dy–0.7La alloy was determined using a combination of immersion test, potentio-dynamic polarisation as well as electrochemical impedance spectroscopy. The results reveal that the addition of La to the Mg–10Dy alloy significantly improves its corrosion performance and this improvement was due to the reduction of the micro-galvanic effect. Moreover, the presence of Dy and La promotes the development of an oxide layer which passivates the surface and further enhances the corrosion resistance of these alloys.

Original language	English
Pages (from-to)	575-583
Number of pages	9
Journal	Corrosion Engineering Science and Technology
Volume	56
Issue number	6
DOIs	https://doi.org/10.1080/1478422X.2021.1922811
Publication status	Published - 11 May 2021

Bibliographical note

Funding Information:
JJ acknowledges the financial assistance provided by India-Birmingham institute fellowship during his stay at Birmingham. We also acknowledge the support from the Department of Materials Science and Engineering at IIT Delhi.

Publisher Copyright:
© 2021 Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the Institute.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

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Cite this

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title = "Role of La addition for enhancing the corrosion resistance of Mg–Dy alloy",

abstract = "We report the corrosion behaviour of a novel Mg–10Dy–0.7La alloy in the as-cast and solutionised conditions. The corrosion performance of binary Mg–10Dy and the new ternary Mg–10Dy–0.7La alloy was determined using a combination of immersion test, potentio-dynamic polarisation as well as electrochemical impedance spectroscopy. The results reveal that the addition of La to the Mg–10Dy alloy significantly improves its corrosion performance and this improvement was due to the reduction of the micro-galvanic effect. Moreover, the presence of Dy and La promotes the development of an oxide layer which passivates the surface and further enhances the corrosion resistance of these alloys.",

author = "A. Prasad and Chiu, {Y. L.} and Jones, {I. P.} and Singh, {S. S.} and Gosvami, {N. N.} and J. Jain",

note = "Funding Information: JJ acknowledges the financial assistance provided by India-Birmingham institute fellowship during his stay at Birmingham. We also acknowledge the support from the Department of Materials Science and Engineering at IIT Delhi. Publisher Copyright: {\textcopyright} 2021 Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the Institute.",

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T1 - Role of La addition for enhancing the corrosion resistance of Mg–Dy alloy

AU - Prasad, A.

AU - Chiu, Y. L.

AU - Jones, I. P.

AU - Singh, S. S.

AU - Gosvami, N. N.

AU - Jain, J.

N1 - Funding Information: JJ acknowledges the financial assistance provided by India-Birmingham institute fellowship during his stay at Birmingham. We also acknowledge the support from the Department of Materials Science and Engineering at IIT Delhi. Publisher Copyright: © 2021 Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the Institute.

PY - 2021/5/11

Y1 - 2021/5/11

N2 - We report the corrosion behaviour of a novel Mg–10Dy–0.7La alloy in the as-cast and solutionised conditions. The corrosion performance of binary Mg–10Dy and the new ternary Mg–10Dy–0.7La alloy was determined using a combination of immersion test, potentio-dynamic polarisation as well as electrochemical impedance spectroscopy. The results reveal that the addition of La to the Mg–10Dy alloy significantly improves its corrosion performance and this improvement was due to the reduction of the micro-galvanic effect. Moreover, the presence of Dy and La promotes the development of an oxide layer which passivates the surface and further enhances the corrosion resistance of these alloys.

AB - We report the corrosion behaviour of a novel Mg–10Dy–0.7La alloy in the as-cast and solutionised conditions. The corrosion performance of binary Mg–10Dy and the new ternary Mg–10Dy–0.7La alloy was determined using a combination of immersion test, potentio-dynamic polarisation as well as electrochemical impedance spectroscopy. The results reveal that the addition of La to the Mg–10Dy alloy significantly improves its corrosion performance and this improvement was due to the reduction of the micro-galvanic effect. Moreover, the presence of Dy and La promotes the development of an oxide layer which passivates the surface and further enhances the corrosion resistance of these alloys.

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JO - Corrosion Engineering Science and Technology

JF - Corrosion Engineering Science and Technology

IS - 6

ER -

Role of La addition for enhancing the corrosion resistance of Mg–Dy alloy

Abstract

Bibliographical note

ASJC Scopus subject areas

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