Staff View: Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si

Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite

Addition of barium (Ba) in various concentrations is susceptible to cause changes on Mg2Si reinforced particles in Al–Mg2Si–Cu in situ composite. In this study, six samples of the composite with different concentrations of Ba (0.1–0.8 wt%) were prepared. The alteration of Mg2Si structure, phase reac...

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Main Authors:	Nordin, Nur Azmah, Saeed Farahany, Saeed Farahany, Abu Bakar, Tuty Asma, Ourdjini, Ali, Mazlan, Saiful Amri, Abdul Aziz, Siti Aishah, Yahaya, Hafizal
Format:	Conference or Workshop Item
Published:	2020
Subjects:	T Technology (General)
Online Access:	http://eprints.utm.my/id/eprint/92827/ http://dx.doi.org/10.1007/978-3-030-60839-2_8
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spelling	my.utm.928272021-10-28T10:17:48Z http://eprints.utm.my/id/eprint/92827/ Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite Nordin, Nur Azmah Saeed Farahany, Saeed Farahany Abu Bakar, Tuty Asma Ourdjini, Ali Mazlan, Saiful Amri Abdul Aziz, Siti Aishah Yahaya, Hafizal T Technology (General) Addition of barium (Ba) in various concentrations is susceptible to cause changes on Mg2Si reinforced particles in Al–Mg2Si–Cu in situ composite. In this study, six samples of the composite with different concentrations of Ba (0.1–0.8 wt%) were prepared. The alteration of Mg2Si structure, phase reaction characteristics and cooling curves behaviour of the composite were investigated via optical microscope, scanning electron microscope (SEM), and computer aided cooling curve thermal analysis (CACCTA). The results depicted that 0.2 wt% exhibit the appropriate concentration of Ba added in order to modify and refine the Mg2Si particles. The skeleton and dendrite shape of Mg2Si particles have been transformed into fine polygonal shape accompanied with decreased in average size from 1178.5 µm of the unmodified particles to 289.1 µm. In fact, the refinement of Mg2Si particles is associated with the increased of nucleation temperature, TN of the respective phase together with the least undercooling, ΔU correspond to the easiness of the particles to be formed prior to its growth. Meanwhile, the decrement of TN respective to other concentrations of Ba indicates the opposite refinement effect of the particles as it became coarser. Besides, the refinement of Mg2Si has induced more nucleation of the particles resulting the increment of the density of particles and better distribution over the composite area. Therefore, the corresponding mechanical and tribological properties of the composite are believed to be improved accordingly. 2020 Conference or Workshop Item PeerReviewed Nordin, Nur Azmah and Saeed Farahany, Saeed Farahany and Abu Bakar, Tuty Asma and Ourdjini, Ali and Mazlan, Saiful Amri and Abdul Aziz, Siti Aishah and Yahaya, Hafizal (2020) Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite. In: Proceedings of the 6th International Conference and Exhibition on Sustainable Energy and Advanced Materials: ICE-SEAM 2019, 16 - 17 October 2019, Surakarta, Indonesia. http://dx.doi.org/10.1007/978-3-030-60839-2_8
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	T Technology (General)
spellingShingle	T Technology (General) Nordin, Nur Azmah Saeed Farahany, Saeed Farahany Abu Bakar, Tuty Asma Ourdjini, Ali Mazlan, Saiful Amri Abdul Aziz, Siti Aishah Yahaya, Hafizal Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite
description	Addition of barium (Ba) in various concentrations is susceptible to cause changes on Mg2Si reinforced particles in Al–Mg2Si–Cu in situ composite. In this study, six samples of the composite with different concentrations of Ba (0.1–0.8 wt%) were prepared. The alteration of Mg2Si structure, phase reaction characteristics and cooling curves behaviour of the composite were investigated via optical microscope, scanning electron microscope (SEM), and computer aided cooling curve thermal analysis (CACCTA). The results depicted that 0.2 wt% exhibit the appropriate concentration of Ba added in order to modify and refine the Mg2Si particles. The skeleton and dendrite shape of Mg2Si particles have been transformed into fine polygonal shape accompanied with decreased in average size from 1178.5 µm of the unmodified particles to 289.1 µm. In fact, the refinement of Mg2Si particles is associated with the increased of nucleation temperature, TN of the respective phase together with the least undercooling, ΔU correspond to the easiness of the particles to be formed prior to its growth. Meanwhile, the decrement of TN respective to other concentrations of Ba indicates the opposite refinement effect of the particles as it became coarser. Besides, the refinement of Mg2Si has induced more nucleation of the particles resulting the increment of the density of particles and better distribution over the composite area. Therefore, the corresponding mechanical and tribological properties of the composite are believed to be improved accordingly.
format	Conference or Workshop Item
author	Nordin, Nur Azmah Saeed Farahany, Saeed Farahany Abu Bakar, Tuty Asma Ourdjini, Ali Mazlan, Saiful Amri Abdul Aziz, Siti Aishah Yahaya, Hafizal
author_facet	Nordin, Nur Azmah Saeed Farahany, Saeed Farahany Abu Bakar, Tuty Asma Ourdjini, Ali Mazlan, Saiful Amri Abdul Aziz, Siti Aishah Yahaya, Hafizal
author_sort	Nordin, Nur Azmah
title	Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite
title_short	Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite
title_full	Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite
title_fullStr	Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite
title_full_unstemmed	Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite
title_sort	effect of barium on the structure and characteristics of mg2si reinforced particles al–mg2si–cu in situ composite
publishDate	2020
url	http://eprints.utm.my/id/eprint/92827/ http://dx.doi.org/10.1007/978-3-030-60839-2_8
_version_	1715189695741165568
score	13.211869

Effect of barium on the structure and characteristics of Mg2Si reinforced particles Al–Mg2Si–Cu in situ composite

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