A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting

In this study, composites of aluminum alloy 6063 reinforced with 10 wt% boron carbide microparticles were successfully fabricated by a combination of spark plasma sintering and stir casting methods, followed by hot extrusion. A systematic study on the relationship between extrusion process variables...

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Main Authors:	Pakdel, Amir, Witecka, Agnieszka, Rydzek, Gaulthier, Dayangku Noorfazidah, Awang Sh'ri, Nicolosi, Valeria
Format:	Article
Language:	English
Published:	Elsevier 2018
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/23316/ http://umpir.ump.edu.my/id/eprint/23316/ http://umpir.ump.edu.my/id/eprint/23316/ http://umpir.ump.edu.my/id/eprint/23316/1/A%20comprehensive%20analysis%20of%20extrusion%20behavior%2C%20microstructural.pdf

id	ump-23316
recordtype	eprints
spelling	ump-233162019-02-25T07:49:21Z http://umpir.ump.edu.my/id/eprint/23316/ A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting Pakdel, Amir Witecka, Agnieszka Rydzek, Gaulthier Dayangku Noorfazidah, Awang Sh'ri Nicolosi, Valeria T Technology (General) TJ Mechanical engineering and machinery In this study, composites of aluminum alloy 6063 reinforced with 10 wt% boron carbide microparticles were successfully fabricated by a combination of spark plasma sintering and stir casting methods, followed by hot extrusion. A systematic study on the relationship between extrusion process variables (i.e. extrusion ratio, temperature, and punch speed) and porosity, particle refinement, particle distribution and consequently tensile properties and fracture behavior of the composites was performed. Extensive electron microscopy analysis and tensile testing of the composites revealed a multifactoral interdependency of microstructural evolution and mechanical properties on the extrusion process variables. For example, while increasing the extrusion ratio at higher temperatures led to moderate particle refinement, better densification of the composites, and improvement in mechanical properties, concurrent particle fragmentation and microvoid formation around the particles at lower temperatures had opposing effects on the mechanical behavior. We show that the dependency of mechanical properties on all such microstructural factors makes it difficult to predict optimum extrusion conditions in aluminum matrix composites. That is, unlike the common approach, extruding the composites at higher temperatures and achieving more reduction in area may not necessarily lead to the most favorable mechanical properties. Elsevier 2018-04-04 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23316/1/A%20comprehensive%20analysis%20of%20extrusion%20behavior%2C%20microstructural.pdf Pakdel, Amir and Witecka, Agnieszka and Rydzek, Gaulthier and Dayangku Noorfazidah, Awang Sh'ri and Nicolosi, Valeria (2018) A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting. Materials Science and Engineering: A, 721. pp. 28-37. ISSN 0921-5093 https://doi.org/10.1016/j.msea.2018.02.080 https://doi.org/10.1016/j.msea.2018.02.080
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery Pakdel, Amir Witecka, Agnieszka Rydzek, Gaulthier Dayangku Noorfazidah, Awang Sh'ri Nicolosi, Valeria A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting
description	In this study, composites of aluminum alloy 6063 reinforced with 10 wt% boron carbide microparticles were successfully fabricated by a combination of spark plasma sintering and stir casting methods, followed by hot extrusion. A systematic study on the relationship between extrusion process variables (i.e. extrusion ratio, temperature, and punch speed) and porosity, particle refinement, particle distribution and consequently tensile properties and fracture behavior of the composites was performed. Extensive electron microscopy analysis and tensile testing of the composites revealed a multifactoral interdependency of microstructural evolution and mechanical properties on the extrusion process variables. For example, while increasing the extrusion ratio at higher temperatures led to moderate particle refinement, better densification of the composites, and improvement in mechanical properties, concurrent particle fragmentation and microvoid formation around the particles at lower temperatures had opposing effects on the mechanical behavior. We show that the dependency of mechanical properties on all such microstructural factors makes it difficult to predict optimum extrusion conditions in aluminum matrix composites. That is, unlike the common approach, extruding the composites at higher temperatures and achieving more reduction in area may not necessarily lead to the most favorable mechanical properties.
format	Article
author	Pakdel, Amir Witecka, Agnieszka Rydzek, Gaulthier Dayangku Noorfazidah, Awang Sh'ri Nicolosi, Valeria
author_facet	Pakdel, Amir Witecka, Agnieszka Rydzek, Gaulthier Dayangku Noorfazidah, Awang Sh'ri Nicolosi, Valeria
author_sort	Pakdel, Amir
title	A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting
title_short	A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting
title_full	A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting
title_fullStr	A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting
title_full_unstemmed	A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting
title_sort	comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 al-b4c composites produced by semisolid stir casting
publisher	Elsevier
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/23316/ http://umpir.ump.edu.my/id/eprint/23316/ http://umpir.ump.edu.my/id/eprint/23316/ http://umpir.ump.edu.my/id/eprint/23316/1/A%20comprehensive%20analysis%20of%20extrusion%20behavior%2C%20microstructural.pdf
first_indexed	2023-09-18T22:34:51Z
last_indexed	2023-09-18T22:34:51Z
_version_	1777416526880571392

A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al-B4C composites produced by semisolid stir casting

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