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Conference Paper/Proceeding/Abstract 337 views 66 downloads

Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys

X. Zhang, H. R. Kotadia, J. Depner, M. Qian, A. Das, Amit Das Orcid Logo

Data Mining, Volume: 996

Swansea University Author: Amit Das Orcid Logo

Abstract

Solidification microstructures formed under high-intensity ultrasonication are systematically investigated in various Al and Mg-alloys. The range of microstructures examined include primary grain structure, intermetallic compounds (IMCs), regular and irregular eutectics. Extensive grain refinement i...

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Published in: Data Mining
ISBN: 978-981-13-6660-4 978-981-13-6661-1
ISSN: 1865-0929 1865-0937
Published: Springer, Cham 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa48977
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spelling 2019-06-07T14:19:38.1239579 v2 48977 2019-02-26 Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys 4d785df766daed9a857c934bb130ed8b 0000-0002-7196-6254 Amit Das Amit Das true false 2019-02-26 MTLS Solidification microstructures formed under high-intensity ultrasonication are systematically investigated in various Al and Mg-alloys. The range of microstructures examined include primary grain structure, intermetallic compounds (IMCs), regular and irregular eutectics. Extensive grain refinement is observed in all alloys, especially in the areas of cavitation, further facilitated by the presence of solute. Heat treatability of the ultrasonicated alloys is enhanced as the fine-grained microstructure reduced diffusion distance. Regular lamellar eutectic microstructure is observed to degenerate under cavitation. Irregular eutectic and IMCs are modified from coarse plates or complex morphology into compact polygonal shape. Result suggests that ultrasonication increases nucleating particles and potency of nucleants. The modification of eutectic and IMCs predominantly occurs through coarsening and spheroidisation in the area of intense cavitation. While grain refinement effect is noticed in the entire ingots assisted by acoustic streaming, eutectic modification effect dissipates rapidly outside the area of cavitation. Conference Paper/Proceeding/Abstract Data Mining 996 1595 Springer, Cham 978-981-13-6660-4 978-981-13-6661-1 1865-0929 1865-0937 10 3 2019 2019-03-10 10.1007/978-3-030-05864-7_201 Part of the The Minerals, Metals & Materials Series book series (MMMS) COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2019-06-07T14:19:38.1239579 2019-02-26T11:58:15.3506271 College of Engineering Engineering X. Zhang 1 H. R. Kotadia 2 J. Depner 3 M. Qian 4 A. Das 5 Amit Das 0000-0002-7196-6254 6 0048977-14032019092033.pdf 48977.pdf 2019-03-14T09:20:33.0930000 Output 610943 application/pdf Accepted Manuscript true 2020-02-16T00:00:00.0000000 true eng
title Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys
spellingShingle Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys
Amit, Das
title_short Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys
title_full Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys
title_fullStr Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys
title_full_unstemmed Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys
title_sort Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys
author_id_str_mv 4d785df766daed9a857c934bb130ed8b
author_id_fullname_str_mv 4d785df766daed9a857c934bb130ed8b_***_Amit, Das_***_0000-0002-7196-6254
author Amit, Das
author2 X. Zhang
H. R. Kotadia
J. Depner
M. Qian
A. Das
Amit Das
format Conference Paper/Proceeding/Abstract
container_title Data Mining
container_volume 996
publishDate 2019
institution Swansea University
isbn 978-981-13-6660-4
978-981-13-6661-1
issn 1865-0929
1865-0937
doi_str_mv 10.1007/978-3-030-05864-7_201
publisher Springer, Cham
college_str College of Engineering
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hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
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description Solidification microstructures formed under high-intensity ultrasonication are systematically investigated in various Al and Mg-alloys. The range of microstructures examined include primary grain structure, intermetallic compounds (IMCs), regular and irregular eutectics. Extensive grain refinement is observed in all alloys, especially in the areas of cavitation, further facilitated by the presence of solute. Heat treatability of the ultrasonicated alloys is enhanced as the fine-grained microstructure reduced diffusion distance. Regular lamellar eutectic microstructure is observed to degenerate under cavitation. Irregular eutectic and IMCs are modified from coarse plates or complex morphology into compact polygonal shape. Result suggests that ultrasonication increases nucleating particles and potency of nucleants. The modification of eutectic and IMCs predominantly occurs through coarsening and spheroidisation in the area of intense cavitation. While grain refinement effect is noticed in the entire ingots assisted by acoustic streaming, eutectic modification effect dissipates rapidly outside the area of cavitation.
published_date 2019-03-10T04:13:40Z
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