Cargando…

Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers

In this study, AZ91/23 vol.% short carbon fiber composite was produced by a squeeze casting technique using a cylindrical pre-form of treated carbon fibers, in which the fibers are randomly oriented in the horizontal plane. Cylindrical specimens (height = 9 mm and diameter = 6 mm) were machined from...

Descripción completa

Detalles Bibliográficos
Autores principales: Ataya, Sabbah, El-Sayed Seleman, Mohamed M., Latief, Fahamsyah H., Ahmed, Mohamed M. Z., Hajlaoui, Khalil, Elshaghoul, Yousef G. Y., Habba, Mohamed I. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320492/
https://www.ncbi.nlm.nih.gov/pubmed/35888285
http://dx.doi.org/10.3390/ma15144818
_version_ 1784755805224960000
author Ataya, Sabbah
El-Sayed Seleman, Mohamed M.
Latief, Fahamsyah H.
Ahmed, Mohamed M. Z.
Hajlaoui, Khalil
Elshaghoul, Yousef G. Y.
Habba, Mohamed I. A.
author_facet Ataya, Sabbah
El-Sayed Seleman, Mohamed M.
Latief, Fahamsyah H.
Ahmed, Mohamed M. Z.
Hajlaoui, Khalil
Elshaghoul, Yousef G. Y.
Habba, Mohamed I. A.
author_sort Ataya, Sabbah
collection PubMed
description In this study, AZ91/23 vol.% short carbon fiber composite was produced by a squeeze casting technique using a cylindrical pre-form of treated carbon fibers, in which the fibers are randomly oriented in the horizontal plane. Cylindrical specimens (height = 9 mm and diameter = 6 mm) were machined from the as-cast AZ91 matrix and its composite. The full behavior of the produced composite was studied through the test specimens machined in two directions, namely parallel to the reinforced plane (in the radial direction of the cast cylinder) and normal to the reinforced plane (in the axial direction of the cast composite). The microstructures of the produced composite specimens were investigated using SEM equipped with EDS analysis. Density, hardness, compressive, and wear behavior were also investigated. For comparison, the AZ91 matrix was evaluated as a reference. The microstructure of the produced AZ91 matrix alloy and its composite revealed dense materials without casting defects. Both composite specimens show improvement in hardness, compressive strength, and wear properties over the AZ91 matrix. The compressive and wear properties are more fiber orientation-dependent than the hardness results. The parallel composite specimen depicts the highest compressive properties in terms of yield compressive strength (311 MPa) and ultimate compressive strength (419 MPa), compared to that shown by the AZ91 matrix and the normal composite specimen. This improvement in compressive strength was at the expense of ductility. The parallel composite specimen shows the lowest ductility (R = 3.8%), compared to that given by the normal composite specimen (R = 7.1) and the AZ91 matrix alloy (R = 13.6). The wear testing results showed that at the highest wear load of 5 N, the material weight loss of the parallel composite specimen decreases by 44% and 64% compared to the AZ91 matrix and the normal composite specimen, respectively.
format Online
Article
Text
id pubmed-9320492
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-93204922022-07-27 Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers Ataya, Sabbah El-Sayed Seleman, Mohamed M. Latief, Fahamsyah H. Ahmed, Mohamed M. Z. Hajlaoui, Khalil Elshaghoul, Yousef G. Y. Habba, Mohamed I. A. Materials (Basel) Article In this study, AZ91/23 vol.% short carbon fiber composite was produced by a squeeze casting technique using a cylindrical pre-form of treated carbon fibers, in which the fibers are randomly oriented in the horizontal plane. Cylindrical specimens (height = 9 mm and diameter = 6 mm) were machined from the as-cast AZ91 matrix and its composite. The full behavior of the produced composite was studied through the test specimens machined in two directions, namely parallel to the reinforced plane (in the radial direction of the cast cylinder) and normal to the reinforced plane (in the axial direction of the cast composite). The microstructures of the produced composite specimens were investigated using SEM equipped with EDS analysis. Density, hardness, compressive, and wear behavior were also investigated. For comparison, the AZ91 matrix was evaluated as a reference. The microstructure of the produced AZ91 matrix alloy and its composite revealed dense materials without casting defects. Both composite specimens show improvement in hardness, compressive strength, and wear properties over the AZ91 matrix. The compressive and wear properties are more fiber orientation-dependent than the hardness results. The parallel composite specimen depicts the highest compressive properties in terms of yield compressive strength (311 MPa) and ultimate compressive strength (419 MPa), compared to that shown by the AZ91 matrix and the normal composite specimen. This improvement in compressive strength was at the expense of ductility. The parallel composite specimen shows the lowest ductility (R = 3.8%), compared to that given by the normal composite specimen (R = 7.1) and the AZ91 matrix alloy (R = 13.6). The wear testing results showed that at the highest wear load of 5 N, the material weight loss of the parallel composite specimen decreases by 44% and 64% compared to the AZ91 matrix and the normal composite specimen, respectively. MDPI 2022-07-10 /pmc/articles/PMC9320492/ /pubmed/35888285 http://dx.doi.org/10.3390/ma15144818 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ataya, Sabbah
El-Sayed Seleman, Mohamed M.
Latief, Fahamsyah H.
Ahmed, Mohamed M. Z.
Hajlaoui, Khalil
Elshaghoul, Yousef G. Y.
Habba, Mohamed I. A.
Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers
title Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers
title_full Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers
title_fullStr Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers
title_full_unstemmed Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers
title_short Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers
title_sort microstructure and mechanical properties of az91 rein-forced with high volume fraction of oriented short carbon fibers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320492/
https://www.ncbi.nlm.nih.gov/pubmed/35888285
http://dx.doi.org/10.3390/ma15144818
work_keys_str_mv AT atayasabbah microstructureandmechanicalpropertiesofaz91reinforcedwithhighvolumefractionoforientedshortcarbonfibers
AT elsayedselemanmohamedm microstructureandmechanicalpropertiesofaz91reinforcedwithhighvolumefractionoforientedshortcarbonfibers
AT latieffahamsyahh microstructureandmechanicalpropertiesofaz91reinforcedwithhighvolumefractionoforientedshortcarbonfibers
AT ahmedmohamedmz microstructureandmechanicalpropertiesofaz91reinforcedwithhighvolumefractionoforientedshortcarbonfibers
AT hajlaouikhalil microstructureandmechanicalpropertiesofaz91reinforcedwithhighvolumefractionoforientedshortcarbonfibers
AT elshaghoulyousefgy microstructureandmechanicalpropertiesofaz91reinforcedwithhighvolumefractionoforientedshortcarbonfibers
AT habbamohamedia microstructureandmechanicalpropertiesofaz91reinforcedwithhighvolumefractionoforientedshortcarbonfibers