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Ultrasonic Processing of Aluminum–Magnesium Alloys
This study evaluated the effect of UltraSonic Treatment (UST) on a range of Al–Mg alloys. Previous research was carried out on single magnesium compositions. However, the amount and type of the alloy addition are known to affect the grain size even under UST, and the aim of this study was to determi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6213928/ https://www.ncbi.nlm.nih.gov/pubmed/30332770 http://dx.doi.org/10.3390/ma11101994 |
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author | Mills, Kurt Wang, Gui StJohn, David Dargusch, Matthew |
author_facet | Mills, Kurt Wang, Gui StJohn, David Dargusch, Matthew |
author_sort | Mills, Kurt |
collection | PubMed |
description | This study evaluated the effect of UltraSonic Treatment (UST) on a range of Al–Mg alloys. Previous research was carried out on single magnesium compositions. However, the amount and type of the alloy addition are known to affect the grain size even under UST, and the aim of this study was to determine whether or not alloy composition plays a similar role in the case of Al–Mg alloys. By testing binary Al–Mg alloys cast under regular casting conditions and under the presence of an ultrasonic field, it was found that while the addition of Mg solute is important, the amount of solute has little effect when UST is applied. It was observed that the grain size was barely affected by extra solute additions in this condition. This is due to the application of UST during solidification, which resulted in a dramatic reduction in the size of the nucleation free zone thus promoting many more successful nucleation events. Acoustic streaming is proposed as the main cause of this reduction in grain size. |
format | Online Article Text |
id | pubmed-6213928 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-62139282018-11-14 Ultrasonic Processing of Aluminum–Magnesium Alloys Mills, Kurt Wang, Gui StJohn, David Dargusch, Matthew Materials (Basel) Article This study evaluated the effect of UltraSonic Treatment (UST) on a range of Al–Mg alloys. Previous research was carried out on single magnesium compositions. However, the amount and type of the alloy addition are known to affect the grain size even under UST, and the aim of this study was to determine whether or not alloy composition plays a similar role in the case of Al–Mg alloys. By testing binary Al–Mg alloys cast under regular casting conditions and under the presence of an ultrasonic field, it was found that while the addition of Mg solute is important, the amount of solute has little effect when UST is applied. It was observed that the grain size was barely affected by extra solute additions in this condition. This is due to the application of UST during solidification, which resulted in a dramatic reduction in the size of the nucleation free zone thus promoting many more successful nucleation events. Acoustic streaming is proposed as the main cause of this reduction in grain size. MDPI 2018-10-16 /pmc/articles/PMC6213928/ /pubmed/30332770 http://dx.doi.org/10.3390/ma11101994 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Mills, Kurt Wang, Gui StJohn, David Dargusch, Matthew Ultrasonic Processing of Aluminum–Magnesium Alloys |
title | Ultrasonic Processing of Aluminum–Magnesium Alloys |
title_full | Ultrasonic Processing of Aluminum–Magnesium Alloys |
title_fullStr | Ultrasonic Processing of Aluminum–Magnesium Alloys |
title_full_unstemmed | Ultrasonic Processing of Aluminum–Magnesium Alloys |
title_short | Ultrasonic Processing of Aluminum–Magnesium Alloys |
title_sort | ultrasonic processing of aluminum–magnesium alloys |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6213928/ https://www.ncbi.nlm.nih.gov/pubmed/30332770 http://dx.doi.org/10.3390/ma11101994 |
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