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Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement

Hard anodizing has proven to be a helpful surface treatment for aluminium alloy and typically accompanied by the growth of a porous and highly flawed oxide layer. The presence of pores on the oxide surface can be taken as an advantage in improving the surface properties. Fly-ash particles are high i...

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Main Authors:	Mat Tahir, Noor Ayuma, Liza, Shahira, Fukuda, Kanao, Mohamad, Syazwani, Hashimi, Mohd Zakir Fathi, Mohd Yunus, Mohd Saifulnizam, Yaakob, Yazid, Othman, Intan Sharhida
Format:	Article
Published:	Multidisciplinary Digital Publishing Institute 2022
Online Access:	http://psasir.upm.edu.my/id/eprint/103364/ https://www.mdpi.com/2079-6412/12/2/256
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spelling	my.upm.eprints.1033642023-06-12T06:34:00Z http://psasir.upm.edu.my/id/eprint/103364/ Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement Mat Tahir, Noor Ayuma Liza, Shahira Fukuda, Kanao Mohamad, Syazwani Hashimi, Mohd Zakir Fathi Mohd Yunus, Mohd Saifulnizam Yaakob, Yazid Othman, Intan Sharhida Hard anodizing has proven to be a helpful surface treatment for aluminium alloy and typically accompanied by the growth of a porous and highly flawed oxide layer. The presence of pores on the oxide surface can be taken as an advantage in improving the surface properties. Fly-ash particles are high in SiO2 and Al2O3 content and can be utilized as inexpensive strengthening particles, which can increase the wear resistance and microhardness of composite material. It was noticed that limited research had been carried out in utilizing fly-ash as reinforcement on composite oxide coating as a wear resistance candidate. Thus, this study focused on reinforcing fly-ash on oxide coating and investigating its tribological performance. The composite oxide coating was grown on AA2017 aluminium alloy through anodizing process. To understand the effect of anodizing time and fly-ash content, the parameters were varied from 5–60 min and 0–50 g/L, respectively. The findings suggested that 60 min of anodizing time provides the highest thickness and surface roughness at 35 µm and 6.5 µm, respectively. Interestingly, composite oxide coating with 50 g/L fly-ash provides the highest coating thickness but has the lowest roughness at 52 μm and 8.2 μm, respectively. The composite oxide coatings are observed to reduce friction only for a limited time, despite their potential in significantly reducing the wear rate. The wear mechanism observed was adhesion, micro-crack, and delamination. The findings of this study are believed to provide insight on the potential of fly-ash to be a reinforcement for wear-reduction materials. Multidisciplinary Digital Publishing Institute 2022 Article PeerReviewed Mat Tahir, Noor Ayuma and Liza, Shahira and Fukuda, Kanao and Mohamad, Syazwani and Hashimi, Mohd Zakir Fathi and Mohd Yunus, Mohd Saifulnizam and Yaakob, Yazid and Othman, Intan Sharhida (2022) Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement. Coatings, 12 (2). art. no. 256. pp. 1-19. ISSN 2079-6412 https://www.mdpi.com/2079-6412/12/2/256 10.3390/coatings12020256
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
description	Hard anodizing has proven to be a helpful surface treatment for aluminium alloy and typically accompanied by the growth of a porous and highly flawed oxide layer. The presence of pores on the oxide surface can be taken as an advantage in improving the surface properties. Fly-ash particles are high in SiO2 and Al2O3 content and can be utilized as inexpensive strengthening particles, which can increase the wear resistance and microhardness of composite material. It was noticed that limited research had been carried out in utilizing fly-ash as reinforcement on composite oxide coating as a wear resistance candidate. Thus, this study focused on reinforcing fly-ash on oxide coating and investigating its tribological performance. The composite oxide coating was grown on AA2017 aluminium alloy through anodizing process. To understand the effect of anodizing time and fly-ash content, the parameters were varied from 5–60 min and 0–50 g/L, respectively. The findings suggested that 60 min of anodizing time provides the highest thickness and surface roughness at 35 µm and 6.5 µm, respectively. Interestingly, composite oxide coating with 50 g/L fly-ash provides the highest coating thickness but has the lowest roughness at 52 μm and 8.2 μm, respectively. The composite oxide coatings are observed to reduce friction only for a limited time, despite their potential in significantly reducing the wear rate. The wear mechanism observed was adhesion, micro-crack, and delamination. The findings of this study are believed to provide insight on the potential of fly-ash to be a reinforcement for wear-reduction materials.
format	Article
author	Mat Tahir, Noor Ayuma Liza, Shahira Fukuda, Kanao Mohamad, Syazwani Hashimi, Mohd Zakir Fathi Mohd Yunus, Mohd Saifulnizam Yaakob, Yazid Othman, Intan Sharhida
spellingShingle	Mat Tahir, Noor Ayuma Liza, Shahira Fukuda, Kanao Mohamad, Syazwani Hashimi, Mohd Zakir Fathi Mohd Yunus, Mohd Saifulnizam Yaakob, Yazid Othman, Intan Sharhida Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement
author_facet	Mat Tahir, Noor Ayuma Liza, Shahira Fukuda, Kanao Mohamad, Syazwani Hashimi, Mohd Zakir Fathi Mohd Yunus, Mohd Saifulnizam Yaakob, Yazid Othman, Intan Sharhida
author_sort	Mat Tahir, Noor Ayuma
title	Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement
title_short	Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement
title_full	Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement
title_fullStr	Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement
title_full_unstemmed	Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement
title_sort	surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement
publisher	Multidisciplinary Digital Publishing Institute
publishDate	2022
url	http://psasir.upm.edu.my/id/eprint/103364/ https://www.mdpi.com/2079-6412/12/2/256
_version_	1769844454345146368
score	13.211869

Surface and tribological properties of oxide films on aluminium alloy through fly-ash reinforcement

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