Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition
The implementation of wire-arc directed energy deposition requires the development of novel, process-adapted, high-performance aluminum alloys. Conventional high-strength alloys are, however, difficult to process as they are prone to hot-cracking. Crossover alloys based on Al-Mg-Zn combine good proc...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/388912 |
| Acceso en línea: | https://hdl.handle.net/2117/388912 https://dx.doi.org/10.1007/s11837-023-05838-y |
| Access Level: | acceso abierto |
| Palabra clave: | Additive manufacturing Refractory materials Fabricació additiva Materials refractaris Àrees temàtiques de la UPC::Enginyeria dels materials |
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Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy depositionKlein, ThomasArnoldt, AurelGomes, ManuelBarriobero Vila, Pere|||0000-0002-4412-3729Additive manufacturingRefractory materialsFabricació additivaMaterials refractarisÀrees temàtiques de la UPC::Enginyeria dels materialsThe implementation of wire-arc directed energy deposition requires the development of novel, process-adapted, high-performance aluminum alloys. Conventional high-strength alloys are, however, difficult to process as they are prone to hot-cracking. Crossover alloys based on Al-Mg-Zn combine good processability with good mechanical properties following artificial aging. Here, we present an effort to further improve the mechanical properties of Al-Mg-Zn crossover alloys using Ag microalloying. No cracks and few porosities were observed in the samples. The microstructure is dominated by fine and globular grains with a grain size ˜ 26.6 µm. The grain structure is essentially free of texture and contains fine microsegregation zones with ˜ 3–5 µm thickness of segregation seams. Upon heat treatment these microsegregation zones are dissolved and T-phase precipitates are formed as clarified by diffraction experiments. This precipitation reaction results in a microhardness of ˜ 155 HV0.1, a yield strength of 391.3 MPa and 418.6 MPa, an ultimate tensile strength of 452.7 MPa and 529.4 MPa and a fracture strain of 3.4% and 4.4% in transversal and in longitudinal directions, respectively. The gained results suggest that highly loaded structures can be manufactured by wire-arc directed energy deposition using the newly developed aluminum crossover alloy.Peer Reviewed20232023-10-0120232023-06-20journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/388912https://dx.doi.org/10.1007/s11837-023-05838-yreponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3889122026-05-27T15:37:01Z |
| dc.title.none.fl_str_mv |
Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition |
| title |
Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition |
| spellingShingle |
Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition Klein, Thomas Additive manufacturing Refractory materials Fabricació additiva Materials refractaris Àrees temàtiques de la UPC::Enginyeria dels materials |
| title_short |
Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition |
| title_full |
Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition |
| title_fullStr |
Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition |
| title_full_unstemmed |
Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition |
| title_sort |
Microstructure and mechanical properties of an advanced Ag-microalloyed aluminum crossover alloy tailored for wire-arc directed energy deposition |
| dc.creator.none.fl_str_mv |
Klein, Thomas Arnoldt, Aurel Gomes, Manuel Barriobero Vila, Pere|||0000-0002-4412-3729 |
| author |
Klein, Thomas |
| author_facet |
Klein, Thomas Arnoldt, Aurel Gomes, Manuel Barriobero Vila, Pere|||0000-0002-4412-3729 |
| author_role |
author |
| author2 |
Arnoldt, Aurel Gomes, Manuel Barriobero Vila, Pere|||0000-0002-4412-3729 |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
Additive manufacturing Refractory materials Fabricació additiva Materials refractaris Àrees temàtiques de la UPC::Enginyeria dels materials |
| topic |
Additive manufacturing Refractory materials Fabricació additiva Materials refractaris Àrees temàtiques de la UPC::Enginyeria dels materials |
| description |
The implementation of wire-arc directed energy deposition requires the development of novel, process-adapted, high-performance aluminum alloys. Conventional high-strength alloys are, however, difficult to process as they are prone to hot-cracking. Crossover alloys based on Al-Mg-Zn combine good processability with good mechanical properties following artificial aging. Here, we present an effort to further improve the mechanical properties of Al-Mg-Zn crossover alloys using Ag microalloying. No cracks and few porosities were observed in the samples. The microstructure is dominated by fine and globular grains with a grain size ˜ 26.6 µm. The grain structure is essentially free of texture and contains fine microsegregation zones with ˜ 3–5 µm thickness of segregation seams. Upon heat treatment these microsegregation zones are dissolved and T-phase precipitates are formed as clarified by diffraction experiments. This precipitation reaction results in a microhardness of ˜ 155 HV0.1, a yield strength of 391.3 MPa and 418.6 MPa, an ultimate tensile strength of 452.7 MPa and 529.4 MPa and a fracture strain of 3.4% and 4.4% in transversal and in longitudinal directions, respectively. The gained results suggest that highly loaded structures can be manufactured by wire-arc directed energy deposition using the newly developed aluminum crossover alloy. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 2023-10-01 2023 2023-06-20 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2117/388912 https://dx.doi.org/10.1007/s11837-023-05838-y |
| url |
https://hdl.handle.net/2117/388912 https://dx.doi.org/10.1007/s11837-023-05838-y |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
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application/pdf |
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reponame:UPCommons. Portal del coneixement obert de la UPC instname:Universitat Politècnica de Catalunya (UPC) |
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Universitat Politècnica de Catalunya (UPC) |
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UPCommons. Portal del coneixement obert de la UPC |
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UPCommons. Portal del coneixement obert de la UPC |
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