Mechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion

Metallic cellular materials with triply periodic minimal surface (TPMS) topologies have great potential for lightweight and multi-functional applications. However, the effect of level-set values, which can control the topology of TPMS, on the performance of TPMS have not been fully understood becaus...

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Autores principales:	Chenxi Lu, Chi Zhang, Pin Wen, Fei Chen
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Triply periodic minimal surfaces Micro computed tomography Mechanical properties Energy absorption Al–Si10–Mg Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/0ee44cbf4c874529ab0bf34bb21d25a8
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spelling	oai:doaj.org-article:0ee44cbf4c874529ab0bf34bb21d25a82021-11-22T04:26:17ZMechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion2238-785410.1016/j.jmrt.2021.11.008https://doaj.org/article/0ee44cbf4c874529ab0bf34bb21d25a82021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421012874https://doaj.org/toc/2238-7854Metallic cellular materials with triply periodic minimal surface (TPMS) topologies have great potential for lightweight and multi-functional applications. However, the effect of level-set values, which can control the topology of TPMS, on the performance of TPMS have not been fully understood because previous studies have mainly focused on the shell thickness, cell size and periodicity of TPMS. In this paper, Al–Si10–Mg gyroid surfaces with three different level-set values are fabricated by using selective laser melting (SLM). Micro computed tomography (Micro-CT) is used to reconstruct the 3D models of as-built samples, then the geometric deviations and surface quality are investigated. Mechanical behavior and energy absorption characteristics of these gyroid surfaces are investigated both experimentally and numerically, which provide a solid basis for predicting and controlling the deformation behavior in gyroid surfaces. Afterwards, the Gibson–Ashby model is used for understanding the effect of the level-set value on Young's modulus and plateau stress of gyroid surfaces. Finally, the relationship between level-set values and densification strain and energy absorbed per unit volume is also presented to gain insight into the role of level-set values on the energy absorption capability of the gyroid surfaces. Such understanding provides a new method to develop desired properties of implants or energy absorption applications by selecting an optimal combination of level-set value, thickness, periodicity etc.Chenxi LuChi ZhangPin WenFei ChenElsevierarticleTriply periodic minimal surfacesMicro computed tomographyMechanical propertiesEnergy absorptionAl–Si10–MgMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 5650-5661 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Triply periodic minimal surfaces Micro computed tomography Mechanical properties Energy absorption Al–Si10–Mg Mining engineering. Metallurgy TN1-997
spellingShingle	Triply periodic minimal surfaces Micro computed tomography Mechanical properties Energy absorption Al–Si10–Mg Mining engineering. Metallurgy TN1-997 Chenxi Lu Chi Zhang Pin Wen Fei Chen Mechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion
description	Metallic cellular materials with triply periodic minimal surface (TPMS) topologies have great potential for lightweight and multi-functional applications. However, the effect of level-set values, which can control the topology of TPMS, on the performance of TPMS have not been fully understood because previous studies have mainly focused on the shell thickness, cell size and periodicity of TPMS. In this paper, Al–Si10–Mg gyroid surfaces with three different level-set values are fabricated by using selective laser melting (SLM). Micro computed tomography (Micro-CT) is used to reconstruct the 3D models of as-built samples, then the geometric deviations and surface quality are investigated. Mechanical behavior and energy absorption characteristics of these gyroid surfaces are investigated both experimentally and numerically, which provide a solid basis for predicting and controlling the deformation behavior in gyroid surfaces. Afterwards, the Gibson–Ashby model is used for understanding the effect of the level-set value on Young's modulus and plateau stress of gyroid surfaces. Finally, the relationship between level-set values and densification strain and energy absorbed per unit volume is also presented to gain insight into the role of level-set values on the energy absorption capability of the gyroid surfaces. Such understanding provides a new method to develop desired properties of implants or energy absorption applications by selecting an optimal combination of level-set value, thickness, periodicity etc.
format	article
author	Chenxi Lu Chi Zhang Pin Wen Fei Chen
author_facet	Chenxi Lu Chi Zhang Pin Wen Fei Chen
author_sort	Chenxi Lu
title	Mechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion
title_short	Mechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion
title_full	Mechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion
title_fullStr	Mechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion
title_full_unstemmed	Mechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion
title_sort	mechanical behavior of al–si10–mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/0ee44cbf4c874529ab0bf34bb21d25a8
work_keys_str_mv	AT chenxilu mechanicalbehaviorofalsi10mggyroidsurfacewithvariabletopologicalparametersfabricatedvialaserpowderbedfusion AT chizhang mechanicalbehaviorofalsi10mggyroidsurfacewithvariabletopologicalparametersfabricatedvialaserpowderbedfusion AT pinwen mechanicalbehaviorofalsi10mggyroidsurfacewithvariabletopologicalparametersfabricatedvialaserpowderbedfusion AT feichen mechanicalbehaviorofalsi10mggyroidsurfacewithvariabletopologicalparametersfabricatedvialaserpowderbedfusion
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Mechanical behavior of Al–Si10–Mg gyroid surface with variable topological parameters fabricated via laser powder bed fusion

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