Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire
Abstract This study investigates the efficacy of a multi-stage thermo-mechanical processing route, comprising KOBO extrusion followed by cold drawing, for enhancing the mechanical properties of AlSi10Mg alloy produced via by powder bed fusion laser beam melting (PBF-LB/M). The objective was to devel...
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Nature Portfolio
2025-08-01
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| Online Access: | https://doi.org/10.1038/s41598-025-14980-3 |
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| author | P. Snopiński A. Appiah K. Matus Ł. Kuczek K. Żaba M. Balcerzak J. Hajnyš |
| author_facet | P. Snopiński A. Appiah K. Matus Ł. Kuczek K. Żaba M. Balcerzak J. Hajnyš |
| author_sort | P. Snopiński |
| collection | DOAJ |
| description | Abstract This study investigates the efficacy of a multi-stage thermo-mechanical processing route, comprising KOBO extrusion followed by cold drawing, for enhancing the mechanical properties of AlSi10Mg alloy produced via by powder bed fusion laser beam melting (PBF-LB/M). The objective was to develop high-strength wires from this additively manufactured alloy. The microstructural evolution throughout the processing sequence was characterized using scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). KOBO extrusion transformed the initial as-built microstructure into a fine-grained, composite-like structure, characterized by a refined α-Al matrix with homogeneously distributed, fragmented Si particles. This resulted in a compelling combination of mechanical properties, including an ultimate tensile strength (UTS) of 324 MPa and a total elongation of approximately 10%. Subsequent cold drawing induced significant strain hardening and further grain refinement, achieving an average grain size of − 700 nm. This raised the UTS to 401 MPa, though it was accompanied by a substantial reduction in ductility to − 0.6%. These findings demonstrate that the synergistic combination of KOBO extrusion and cold drawing is a promising pathway for fabricating high-strength AlSi10Mg wires from PBF-LB/M -processed feedstock. |
| format | Article |
| id | doaj-art-2faae4f01386473ebf4bd3f374fb891b |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-2faae4f01386473ebf4bd3f374fb891b2025-08-24T11:21:16ZengNature PortfolioScientific Reports2045-23222025-08-0115112010.1038/s41598-025-14980-3Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wireP. Snopiński0A. Appiah1K. Matus2Ł. Kuczek3K. Żaba4M. Balcerzak5J. Hajnyš6Department of Engineering Materials and Biomaterials, Silesian University of TechnologyMaterials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of TechnologyMaterials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of TechnologyDepartment of Metal Working and Physical Metallurgy of Non-Ferrous Metals, AGH University of Science and TechnologyDepartment of Metal Working and Physical Metallurgy of Non-Ferrous Metals, AGH University of Science and TechnologyDepartment of Metal Working and Physical Metallurgy of Non-Ferrous Metals, AGH University of Science and TechnologyFaculty of Mechanical Engineering, VSB-TU OstravaAbstract This study investigates the efficacy of a multi-stage thermo-mechanical processing route, comprising KOBO extrusion followed by cold drawing, for enhancing the mechanical properties of AlSi10Mg alloy produced via by powder bed fusion laser beam melting (PBF-LB/M). The objective was to develop high-strength wires from this additively manufactured alloy. The microstructural evolution throughout the processing sequence was characterized using scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). KOBO extrusion transformed the initial as-built microstructure into a fine-grained, composite-like structure, characterized by a refined α-Al matrix with homogeneously distributed, fragmented Si particles. This resulted in a compelling combination of mechanical properties, including an ultimate tensile strength (UTS) of 324 MPa and a total elongation of approximately 10%. Subsequent cold drawing induced significant strain hardening and further grain refinement, achieving an average grain size of − 700 nm. This raised the UTS to 401 MPa, though it was accompanied by a substantial reduction in ductility to − 0.6%. These findings demonstrate that the synergistic combination of KOBO extrusion and cold drawing is a promising pathway for fabricating high-strength AlSi10Mg wires from PBF-LB/M -processed feedstock.https://doi.org/10.1038/s41598-025-14980-3AlSi10MgCold-drawingKOBO extrusionMicrostructure characterizationPost-processing treatment |
| spellingShingle | P. Snopiński A. Appiah K. Matus Ł. Kuczek K. Żaba M. Balcerzak J. Hajnyš Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire Scientific Reports AlSi10Mg Cold-drawing KOBO extrusion Microstructure characterization Post-processing treatment |
| title | Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire |
| title_full | Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire |
| title_fullStr | Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire |
| title_full_unstemmed | Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire |
| title_short | Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire |
| title_sort | utilizing pbf lb m alsi10mg alloy post processed via kobo extrusion and subsequent cold drawing to obtain high strength wire |
| topic | AlSi10Mg Cold-drawing KOBO extrusion Microstructure characterization Post-processing treatment |
| url | https://doi.org/10.1038/s41598-025-14980-3 |
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