Microstructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy

Additive Friction Stir-Deposition (AFS-D) is a transformative, metallic additive manufacturing (AM) process capable of producing near-net shape components with a wide variety of material systems. The solid-state nature of the process permits many of these materials to be successfully deposited witho...

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Autores principales:	Brandon J. Phillips, C. Jacob Williamson, Ryan P. Kinser, J. Brian Jordon, Kevin J. Doherty, Paul G. Allison
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	additive friction stir-deposition additive manufacturing aluminum alloy defects solid-state fractography Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/020467311400483aa86d55890a5bee97
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spelling	oai:doaj.org-article:020467311400483aa86d55890a5bee972021-11-11T18:13:18ZMicrostructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy10.3390/ma142167321996-1944https://doaj.org/article/020467311400483aa86d55890a5bee972021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6732https://doaj.org/toc/1996-1944Additive Friction Stir-Deposition (AFS-D) is a transformative, metallic additive manufacturing (AM) process capable of producing near-net shape components with a wide variety of material systems. The solid-state nature of the process permits many of these materials to be successfully deposited without the deleterious phase and thermally activated defects commonly observed in other metallic AM technologies. This work is the first to investigate the as-deposited microstructure and mechanical performance of a free-standing AA5083 deposition. An initial process parameterization was conducted to down-select optimal parameters for a large deposition to examine build direction properties. Microscopy revealed that constitutive particles were dispersed evenly throughout the matrix when compared to the rolled feedstock. Electron backscatter diffraction revealed a significant grain refinement from the inherent dynamic recrystallization from the AFS-D process. Tensile experiments determined a drop in yield strength, but an improvement in tensile strength in the longitudinal direction. However, a substantial reduction in tensile strength was observed in the build direction of the structure. Subsequent fractographic analysis revealed that the recommended lubrication applied to the feedstock rods, necessary for successful depositions via AFS-D, was ineffectively dispersed into the structure. As a result, lubrication contamination became entrapped at layer boundaries, preventing adequate bonding between layers.Brandon J. PhillipsC. Jacob WilliamsonRyan P. KinserJ. Brian JordonKevin J. DohertyPaul G. AllisonMDPI AGarticleadditive friction stir-depositionadditive manufacturingaluminum alloydefectssolid-statefractographyTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6732, p 6732 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	additive friction stir-deposition additive manufacturing aluminum alloy defects solid-state fractography Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	additive friction stir-deposition additive manufacturing aluminum alloy defects solid-state fractography Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Brandon J. Phillips C. Jacob Williamson Ryan P. Kinser J. Brian Jordon Kevin J. Doherty Paul G. Allison Microstructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy
description	Additive Friction Stir-Deposition (AFS-D) is a transformative, metallic additive manufacturing (AM) process capable of producing near-net shape components with a wide variety of material systems. The solid-state nature of the process permits many of these materials to be successfully deposited without the deleterious phase and thermally activated defects commonly observed in other metallic AM technologies. This work is the first to investigate the as-deposited microstructure and mechanical performance of a free-standing AA5083 deposition. An initial process parameterization was conducted to down-select optimal parameters for a large deposition to examine build direction properties. Microscopy revealed that constitutive particles were dispersed evenly throughout the matrix when compared to the rolled feedstock. Electron backscatter diffraction revealed a significant grain refinement from the inherent dynamic recrystallization from the AFS-D process. Tensile experiments determined a drop in yield strength, but an improvement in tensile strength in the longitudinal direction. However, a substantial reduction in tensile strength was observed in the build direction of the structure. Subsequent fractographic analysis revealed that the recommended lubrication applied to the feedstock rods, necessary for successful depositions via AFS-D, was ineffectively dispersed into the structure. As a result, lubrication contamination became entrapped at layer boundaries, preventing adequate bonding between layers.
format	article
author	Brandon J. Phillips C. Jacob Williamson Ryan P. Kinser J. Brian Jordon Kevin J. Doherty Paul G. Allison
author_facet	Brandon J. Phillips C. Jacob Williamson Ryan P. Kinser J. Brian Jordon Kevin J. Doherty Paul G. Allison
author_sort	Brandon J. Phillips
title	Microstructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy
title_short	Microstructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy
title_full	Microstructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy
title_fullStr	Microstructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy
title_full_unstemmed	Microstructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy
title_sort	microstructural and mechanical characterization of additive friction stir-deposition of aluminum alloy 5083 effect of lubrication on material anisotropy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/020467311400483aa86d55890a5bee97
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Microstructural and Mechanical Characterization of Additive Friction Stir-Deposition of Aluminum Alloy 5083 Effect of Lubrication on Material Anisotropy

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