Evaluation of microstructure evolution and mechanical properties of Al-10Zn-1.63Si/ particulates alloy composites

This study demonstrates the feasibility of using Irvingia gabonensis shell particulates (IGSp) as alternative reinforcing materials in the development of aluminium-based composites. In this experimental study, the microstructure, phase composition, and mechanical behaviour of Al-10Zn-1.63Si/xIGSp (w...

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Main Authors: Chukwuneke Jeremiah Lekwuwa, Sinebe Jude Ebieladoh, Umahi Justice Chidi, Nnakwo Kingsley Chidi, Olisakwe Henry Chukwuemeka
Format: Article
Language:English
Published: SAGE Publishing 2024-03-01
Series:Journal of Applied Biomaterials & Functional Materials
Online Access:https://doi.org/10.1177/22808000241236021
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author Chukwuneke Jeremiah Lekwuwa
Sinebe Jude Ebieladoh
Umahi Justice Chidi
Nnakwo Kingsley Chidi
Olisakwe Henry Chukwuemeka
author_facet Chukwuneke Jeremiah Lekwuwa
Sinebe Jude Ebieladoh
Umahi Justice Chidi
Nnakwo Kingsley Chidi
Olisakwe Henry Chukwuemeka
author_sort Chukwuneke Jeremiah Lekwuwa
collection DOAJ
description This study demonstrates the feasibility of using Irvingia gabonensis shell particulates (IGSp) as alternative reinforcing materials in the development of aluminium-based composites. In this experimental study, the microstructure, phase composition, and mechanical behaviour of Al-10Zn-1.63Si/xIGSp (wt%, x = 1, 3, 5 and 7) composites were investigated. The Al-10Zn-1.63Si based composites were fabricated using the stir-casting technique. Different weight percentages (1, 3, 5 and 7) of IGSp were added to the Al-10Zn-1.63Si matrix. The chemical constituents of the IGSp were determined using X-ray fluorescence (XRF). The grain characteristics and phase(s) compositions were determined using Scanning Electron Microscopy (SEM) and X-ray diffractometer (XRD). The ultimate tensile strength, hardness, and impact strength of the developed composites were also determined. The SEM and XRD results revealed the presence of different phases: aluminium phosphate (Al 16 P 16 O 64 ), gahnite (ZnAl 2 O 4 ), andalusite (Al 2 SiO 5 ), Quartz (SiO 2 ) and aluminium silicate (Al 2 O 3.5 .SiO 2 ). Results show that addition of IGSp led to an increase in ultimate tensile strength, with the highest value (128 MPa) obtained at 3 wt% IGSp. The hardness of the composites increased with increasing concentrations of IGSp, reaching a maximum value of 285 HV after adding 7 wt% IGSp. The impact strength improved with the addition of IGSp, with the highest value (30 J) obtained at 1 wt% IGSp. The improvements in mechanical properties were attributed to the dispersion of three major phases: aluminium silicate (Al 2 O 3.54. SiO 2 ), Al 16 P 16 O 64 and Al 2 O 3.54. SiO 2 . These phases contributed to the enhanced strength and hardness of the composites. The study noted a sudden decrease in ultimate tensile strength with higher concentrations of IGSp due to the increase in the intensities of Al 16 P 16 O 64 and precipitation of hard but brittle new phase; Al 2 Si 60. 6O126.33. The study concludes that IGSp has the potential to serve as an alternative reinforcing material for aluminium-based composites.
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spelling doaj.art-a7e9141f65764325b81ade45e8342c0a2024-03-16T01:04:01ZengSAGE PublishingJournal of Applied Biomaterials & Functional Materials2280-80002024-03-012210.1177/22808000241236021Evaluation of microstructure evolution and mechanical properties of Al-10Zn-1.63Si/ particulates alloy compositesChukwuneke Jeremiah Lekwuwa0Sinebe Jude Ebieladoh1Umahi Justice Chidi2Nnakwo Kingsley Chidi3Olisakwe Henry Chukwuemeka4Mechanical Engineering Department, Nnamdi Azikiwe University, Awka, NigeriaMechanical Engineering Department, Delta State University, Oleh Campus, NigeriaMechanical Engineering Department, Nnamdi Azikiwe University, Awka, NigeriaMetallurgical and Materials Engineering Department, Nnamdi Azikiwe University, Awka, NigeriaMechanical Engineering Department, Nnamdi Azikiwe University, Awka, NigeriaThis study demonstrates the feasibility of using Irvingia gabonensis shell particulates (IGSp) as alternative reinforcing materials in the development of aluminium-based composites. In this experimental study, the microstructure, phase composition, and mechanical behaviour of Al-10Zn-1.63Si/xIGSp (wt%, x = 1, 3, 5 and 7) composites were investigated. The Al-10Zn-1.63Si based composites were fabricated using the stir-casting technique. Different weight percentages (1, 3, 5 and 7) of IGSp were added to the Al-10Zn-1.63Si matrix. The chemical constituents of the IGSp were determined using X-ray fluorescence (XRF). The grain characteristics and phase(s) compositions were determined using Scanning Electron Microscopy (SEM) and X-ray diffractometer (XRD). The ultimate tensile strength, hardness, and impact strength of the developed composites were also determined. The SEM and XRD results revealed the presence of different phases: aluminium phosphate (Al 16 P 16 O 64 ), gahnite (ZnAl 2 O 4 ), andalusite (Al 2 SiO 5 ), Quartz (SiO 2 ) and aluminium silicate (Al 2 O 3.5 .SiO 2 ). Results show that addition of IGSp led to an increase in ultimate tensile strength, with the highest value (128 MPa) obtained at 3 wt% IGSp. The hardness of the composites increased with increasing concentrations of IGSp, reaching a maximum value of 285 HV after adding 7 wt% IGSp. The impact strength improved with the addition of IGSp, with the highest value (30 J) obtained at 1 wt% IGSp. The improvements in mechanical properties were attributed to the dispersion of three major phases: aluminium silicate (Al 2 O 3.54. SiO 2 ), Al 16 P 16 O 64 and Al 2 O 3.54. SiO 2 . These phases contributed to the enhanced strength and hardness of the composites. The study noted a sudden decrease in ultimate tensile strength with higher concentrations of IGSp due to the increase in the intensities of Al 16 P 16 O 64 and precipitation of hard but brittle new phase; Al 2 Si 60. 6O126.33. The study concludes that IGSp has the potential to serve as an alternative reinforcing material for aluminium-based composites.https://doi.org/10.1177/22808000241236021
spellingShingle Chukwuneke Jeremiah Lekwuwa
Sinebe Jude Ebieladoh
Umahi Justice Chidi
Nnakwo Kingsley Chidi
Olisakwe Henry Chukwuemeka
Evaluation of microstructure evolution and mechanical properties of Al-10Zn-1.63Si/ particulates alloy composites
Journal of Applied Biomaterials & Functional Materials
title Evaluation of microstructure evolution and mechanical properties of Al-10Zn-1.63Si/ particulates alloy composites
title_full Evaluation of microstructure evolution and mechanical properties of Al-10Zn-1.63Si/ particulates alloy composites
title_fullStr Evaluation of microstructure evolution and mechanical properties of Al-10Zn-1.63Si/ particulates alloy composites
title_full_unstemmed Evaluation of microstructure evolution and mechanical properties of Al-10Zn-1.63Si/ particulates alloy composites
title_short Evaluation of microstructure evolution and mechanical properties of Al-10Zn-1.63Si/ particulates alloy composites
title_sort evaluation of microstructure evolution and mechanical properties of al 10zn 1 63si particulates alloy composites
url https://doi.org/10.1177/22808000241236021
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