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Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process

Juan Ignacio Ahuir-Torres, Gregory J. Gibbons, Geoff West, Amit Das Orcid Logo, Hiren R. Kotadia

Journal of Alloys and Compounds, Volume: 969, Start page: 172300

Swansea University Author: Amit Das Orcid Logo

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Abstract

Metal additive manufacturing (AM) is an emerging disruptive technology capable of manufacturing complex shaped components that are difficult to manufacture through conventional methods. However, the corrosion behaviour of AM fabricated parts must be considered for safety critical applications. For t...

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Published in: Journal of Alloys and Compounds
ISSN: 0925-8388 1873-4669
Published: Elsevier BV 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa64683
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spelling v2 64683 2023-10-09 Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process 4d785df766daed9a857c934bb130ed8b 0000-0002-7196-6254 Amit Das Amit Das true false 2023-10-09 MTLS Metal additive manufacturing (AM) is an emerging disruptive technology capable of manufacturing complex shaped components that are difficult to manufacture through conventional methods. However, the corrosion behaviour of AM fabricated parts must be considered for safety critical applications. For this reason, we have studied the relationship between AM fabricated Scalmalloy (Al-Mg-Sc-Zr) microstructures and their corresponding corrosion behaviours. This comparison has been drawn against a comparable commercial Al-Mg alloy (5182). The corrosion resistance of the samples in salt water was assessed via various electrochemical analytics techniques. It was observed that Scalmalloy produced better corrosion resistance than 5182 Al-alloy. This can be attributed to the spontaneous formation of a passive film on refined AM microstructure and the presence of Sc and Zr, specifically when samples were fabricated with higher density (less porosity). The alloys’ corrosion mechanisms were dependent on immersion time and the microstructural features of the samples. Journal Article Journal of Alloys and Compounds 969 172300 Elsevier BV 0925-8388 1873-4669 Aluminium, Additive manufacturing, Laser powder bed fusion, Intermetallics, Corrosion, Electrochemical Impedance Spectroscopy 25 12 2023 2023-12-25 10.1016/j.jallcom.2023.172300 http://dx.doi.org/10.1016/j.jallcom.2023.172300 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University Another institution paid the OA fee This work was partially supported by (1) Innovate UK (UK and Canada: enhancing industrial productivity): Powder Formulated Metal Additive Manufactured Actuators (PERFORMA), Grant no. 105613, (2) WMG Centre High Value Manufacturing Catapult, (3) Liverpool John Moore University, Faculty of Engineering and Technology (FET) Pump Prime Awards 2022/23. 2023-11-07T14:54:21.3707751 2023-10-09T16:36:05.5811495 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Juan Ignacio Ahuir-Torres 1 Gregory J. Gibbons 2 Geoff West 3 Amit Das 0000-0002-7196-6254 4 Hiren R. Kotadia 5 64683__28952__677dff59decf4c51b8ec62707990587b.pdf 64683.VOR.pdf 2023-11-07T14:51:39.3974407 Output 17477225 application/pdf Version of Record true Crown Copyright © 2023. Published by Elsevier B.V. Distributed under the terms of a Creative Commons Attribution 4.0 International License (CC BY 4.0). true eng https://creativecommons.org/licenses/by/4.0/
title Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process
spellingShingle Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process
Amit Das
title_short Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process
title_full Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process
title_fullStr Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process
title_full_unstemmed Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process
title_sort Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process
author_id_str_mv 4d785df766daed9a857c934bb130ed8b
author_id_fullname_str_mv 4d785df766daed9a857c934bb130ed8b_***_Amit Das
author Amit Das
author2 Juan Ignacio Ahuir-Torres
Gregory J. Gibbons
Geoff West
Amit Das
Hiren R. Kotadia
format Journal article
container_title Journal of Alloys and Compounds
container_volume 969
container_start_page 172300
publishDate 2023
institution Swansea University
issn 0925-8388
1873-4669
doi_str_mv 10.1016/j.jallcom.2023.172300
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
url http://dx.doi.org/10.1016/j.jallcom.2023.172300
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description Metal additive manufacturing (AM) is an emerging disruptive technology capable of manufacturing complex shaped components that are difficult to manufacture through conventional methods. However, the corrosion behaviour of AM fabricated parts must be considered for safety critical applications. For this reason, we have studied the relationship between AM fabricated Scalmalloy (Al-Mg-Sc-Zr) microstructures and their corresponding corrosion behaviours. This comparison has been drawn against a comparable commercial Al-Mg alloy (5182). The corrosion resistance of the samples in salt water was assessed via various electrochemical analytics techniques. It was observed that Scalmalloy produced better corrosion resistance than 5182 Al-alloy. This can be attributed to the spontaneous formation of a passive film on refined AM microstructure and the presence of Sc and Zr, specifically when samples were fabricated with higher density (less porosity). The alloys’ corrosion mechanisms were dependent on immersion time and the microstructural features of the samples.
published_date 2023-12-25T14:54:25Z
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