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The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite

Direct solid-states, such as hot extrusion and equal channel angular pressing (ECAP), are alternative and efficient solid-state processes for use in recycling aluminium scrap. These processes utilise less energy and are eco-friendly. Ceramic particles such as ZrO2 are suggested as alternatives in th...

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Main Authors: Mohammed Sabbar, Huda, Leman, Zulkiflle, Shamsudin, Shazarel, Mohd Tahir, Suraya, Jaafar, Che Nor Aiza, Mohamed Ariff, Azmah Hanim, Zahari, Nur Ismarrubie, Rady, Mohammed H.
Format: Article
Language:English
Published: MDPI AG 2021
Online Access:http://psasir.upm.edu.my/id/eprint/95403/1/The%20effect%20of%20solid-State%20processes%20and%20heat%20treatment%20on%20the%20properties%20of%20AA7075%20aluminum%20waste%20recycling%20nanocomposite.pdf
http://psasir.upm.edu.my/id/eprint/95403/
https://www.mdpi.com/1996-1944/14/21/6667
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spelling my.upm.eprints.954032023-01-04T09:06:11Z http://psasir.upm.edu.my/id/eprint/95403/ The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite Mohammed Sabbar, Huda Leman, Zulkiflle Shamsudin, Shazarel Mohd Tahir, Suraya Jaafar, Che Nor Aiza Mohamed Ariff, Azmah Hanim Zahari, Nur Ismarrubie Rady, Mohammed H. Direct solid-states, such as hot extrusion and equal channel angular pressing (ECAP), are alternative and efficient solid-state processes for use in recycling aluminium scrap. These processes utilise less energy and are eco-friendly. Ceramic particles such as ZrO2 are suggested as alternatives in the production of metal composites. This study investigated and optimised the effects of various parameters of reinforced ZrO2 nanoparticles on the mechanical and physical properties via response surface methodology (RSM). These parameters were the volume fraction (VF), preheating temperature (T), and preheating time (t). The effects of these parameters were examined before and after the heat treatment condition and ECAP. Each parameter was evaluated at varying magnitudes, i.e., 450, 500, and 550 °C for T, 1, 2, and 3 h for t, and 1, 3, and 5% for VF. The effect that process variables had on responses was elucidated using the factorial design with centre point analysis. T and VF were crucial for attaining the optimum ultimate tensile strength (UTS) and microhardness. Reducing VF increased the mechanical properties to 1 vol% of oxide. The maximum hardness of 95 HV was attained at 550 °C, 1.6 h, and 1 vol% ZrO2 with a density of 2.85 g/cm3 and tensile strength of 487 MPa. UTS, density, and microhardness were enhanced by 14%, 1%, and 9.5%, respectively. Additionally, the hot extrusion parameters and ECAP followed by heat treatment strengthened the microhardness by 64% and density by 3%. Compression pressure and extrusion stress produced in these stages were sufficient to eliminate voids that increased the mechanical properties. MDPI AG 2021-11-05 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/95403/1/The%20effect%20of%20solid-State%20processes%20and%20heat%20treatment%20on%20the%20properties%20of%20AA7075%20aluminum%20waste%20recycling%20nanocomposite.pdf Mohammed Sabbar, Huda and Leman, Zulkiflle and Shamsudin, Shazarel and Mohd Tahir, Suraya and Jaafar, Che Nor Aiza and Mohamed Ariff, Azmah Hanim and Zahari, Nur Ismarrubie and Rady, Mohammed H. (2021) The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite. Materials, 14 (21). art. no. 6667. pp. 1-20. ISSN 1996-1944 https://www.mdpi.com/1996-1944/14/21/6667 10.3390/ma14216667
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/
language English
description Direct solid-states, such as hot extrusion and equal channel angular pressing (ECAP), are alternative and efficient solid-state processes for use in recycling aluminium scrap. These processes utilise less energy and are eco-friendly. Ceramic particles such as ZrO2 are suggested as alternatives in the production of metal composites. This study investigated and optimised the effects of various parameters of reinforced ZrO2 nanoparticles on the mechanical and physical properties via response surface methodology (RSM). These parameters were the volume fraction (VF), preheating temperature (T), and preheating time (t). The effects of these parameters were examined before and after the heat treatment condition and ECAP. Each parameter was evaluated at varying magnitudes, i.e., 450, 500, and 550 °C for T, 1, 2, and 3 h for t, and 1, 3, and 5% for VF. The effect that process variables had on responses was elucidated using the factorial design with centre point analysis. T and VF were crucial for attaining the optimum ultimate tensile strength (UTS) and microhardness. Reducing VF increased the mechanical properties to 1 vol% of oxide. The maximum hardness of 95 HV was attained at 550 °C, 1.6 h, and 1 vol% ZrO2 with a density of 2.85 g/cm3 and tensile strength of 487 MPa. UTS, density, and microhardness were enhanced by 14%, 1%, and 9.5%, respectively. Additionally, the hot extrusion parameters and ECAP followed by heat treatment strengthened the microhardness by 64% and density by 3%. Compression pressure and extrusion stress produced in these stages were sufficient to eliminate voids that increased the mechanical properties.
format Article
author Mohammed Sabbar, Huda
Leman, Zulkiflle
Shamsudin, Shazarel
Mohd Tahir, Suraya
Jaafar, Che Nor Aiza
Mohamed Ariff, Azmah Hanim
Zahari, Nur Ismarrubie
Rady, Mohammed H.
spellingShingle Mohammed Sabbar, Huda
Leman, Zulkiflle
Shamsudin, Shazarel
Mohd Tahir, Suraya
Jaafar, Che Nor Aiza
Mohamed Ariff, Azmah Hanim
Zahari, Nur Ismarrubie
Rady, Mohammed H.
The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite
author_facet Mohammed Sabbar, Huda
Leman, Zulkiflle
Shamsudin, Shazarel
Mohd Tahir, Suraya
Jaafar, Che Nor Aiza
Mohamed Ariff, Azmah Hanim
Zahari, Nur Ismarrubie
Rady, Mohammed H.
author_sort Mohammed Sabbar, Huda
title The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite
title_short The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite
title_full The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite
title_fullStr The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite
title_full_unstemmed The effect of solid-State processes and heat treatment on the properties of AA7075 aluminum waste recycling nanocomposite
title_sort effect of solid-state processes and heat treatment on the properties of aa7075 aluminum waste recycling nanocomposite
publisher MDPI AG
publishDate 2021
url http://psasir.upm.edu.my/id/eprint/95403/1/The%20effect%20of%20solid-State%20processes%20and%20heat%20treatment%20on%20the%20properties%20of%20AA7075%20aluminum%20waste%20recycling%20nanocomposite.pdf
http://psasir.upm.edu.my/id/eprint/95403/
https://www.mdpi.com/1996-1944/14/21/6667
_version_ 1754531216001859584
score 13.211869

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