In situ imaging of precipitate formation in additively manufactured al-alloys by scanning X-ray fluorescence
AbstractAl-alloys incorporating Mn, Cr and Zr, tailored for powder bed fusion-laser beam processes with solubilities three times equilibrium have recently been developed that yield a high strength. Mn and Cr-enriched precipitates that form during printing and heat treatment influence the material’s...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-03-01
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| Series: | European Journal of Materials |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/26889277.2024.2328242 |
| _version_ | 1797244386813149184 |
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| author | Isac Lazar Bharat Mehta Vendulka Bertschová Sri Bala Aditya Malladi Zhe Ren Srashtasrita Das Johannes Hagemann Gerald Falkenberg Karin Frisk Anders Mikkelsen Lars Nyborg |
| author_facet | Isac Lazar Bharat Mehta Vendulka Bertschová Sri Bala Aditya Malladi Zhe Ren Srashtasrita Das Johannes Hagemann Gerald Falkenberg Karin Frisk Anders Mikkelsen Lars Nyborg |
| author_sort | Isac Lazar |
| collection | DOAJ |
| description | AbstractAl-alloys incorporating Mn, Cr and Zr, tailored for powder bed fusion-laser beam processes with solubilities three times equilibrium have recently been developed that yield a high strength. Mn and Cr-enriched precipitates that form during printing and heat treatment influence the material’s mechanical properties hence making it important to understand their kinetics. In this study, direct imaging of these precipitates was accomplished through the utilisation of in situ synchrotron-based scanning X-ray fluorescence. During heat treatment, a selective accumulation of Cr and Mn in two distinct types of precipitates at grain boundaries was observed. Additionally, the microstructure at the melt-pool boundary, containing precipitates found in the as-printed state, remains thermally stable during the heat treatment. Both these results shed light on the active role Cr plays in the precipitation kinetics of the material. The study also demonstrates the significant value of employing high-sensitivity in-situ X-ray fluorescence microscopy in exploring the kinetics of sub-micrometre scale precipitation. |
| first_indexed | 2024-04-24T19:10:11Z |
| format | Article |
| id | doaj.art-060de5fdc02241d694fbaaeb01e823d7 |
| institution | Directory Open Access Journal |
| issn | 2688-9277 |
| language | English |
| last_indexed | 2024-04-24T19:10:11Z |
| publishDate | 2024-03-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | European Journal of Materials |
| spelling | doaj.art-060de5fdc02241d694fbaaeb01e823d72024-03-26T10:44:41ZengTaylor & Francis GroupEuropean Journal of Materials2688-92772024-03-014110.1080/26889277.2024.2328242In situ imaging of precipitate formation in additively manufactured al-alloys by scanning X-ray fluorescenceIsac Lazar0Bharat Mehta1Vendulka Bertschová2Sri Bala Aditya Malladi3Zhe Ren4Srashtasrita Das5Johannes Hagemann6Gerald Falkenberg7Karin Frisk8Anders Mikkelsen9Lars Nyborg10Division of Synchrotron Radiation Research, Department of Physics, and NanoLund, Lund University, Lund, SwedenDepartment of Industrial and Materials Science, Chalmers University of Technology, Göteborg, SwedenTescan Orsay Holding a.s, Brno, Czech RepublicDepartment of Industrial and Materials Science, Chalmers University of Technology, Göteborg, SwedenDeutsches Elektronen-Synchrotron DESY, Hamburg, GermanyInstitute of Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Karlsruhe, GermanyDeutsches Elektronen-Synchrotron DESY, Hamburg, GermanyDeutsches Elektronen-Synchrotron DESY, Hamburg, GermanyDepartment of Industrial and Materials Science, Chalmers University of Technology, Göteborg, SwedenDivision of Synchrotron Radiation Research, Department of Physics, and NanoLund, Lund University, Lund, SwedenDepartment of Industrial and Materials Science, Chalmers University of Technology, Göteborg, SwedenAbstractAl-alloys incorporating Mn, Cr and Zr, tailored for powder bed fusion-laser beam processes with solubilities three times equilibrium have recently been developed that yield a high strength. Mn and Cr-enriched precipitates that form during printing and heat treatment influence the material’s mechanical properties hence making it important to understand their kinetics. In this study, direct imaging of these precipitates was accomplished through the utilisation of in situ synchrotron-based scanning X-ray fluorescence. During heat treatment, a selective accumulation of Cr and Mn in two distinct types of precipitates at grain boundaries was observed. Additionally, the microstructure at the melt-pool boundary, containing precipitates found in the as-printed state, remains thermally stable during the heat treatment. Both these results shed light on the active role Cr plays in the precipitation kinetics of the material. The study also demonstrates the significant value of employing high-sensitivity in-situ X-ray fluorescence microscopy in exploring the kinetics of sub-micrometre scale precipitation.https://www.tandfonline.com/doi/10.1080/26889277.2024.2328242Aluminium alloyspowder bed fusion-laser beamprecipitationsynchrotronin-situX-ray fluorescence imaging |
| spellingShingle | Isac Lazar Bharat Mehta Vendulka Bertschová Sri Bala Aditya Malladi Zhe Ren Srashtasrita Das Johannes Hagemann Gerald Falkenberg Karin Frisk Anders Mikkelsen Lars Nyborg In situ imaging of precipitate formation in additively manufactured al-alloys by scanning X-ray fluorescence European Journal of Materials Aluminium alloys powder bed fusion-laser beam precipitation synchrotron in-situ X-ray fluorescence imaging |
| title | In situ imaging of precipitate formation in additively manufactured al-alloys by scanning X-ray fluorescence |
| title_full | In situ imaging of precipitate formation in additively manufactured al-alloys by scanning X-ray fluorescence |
| title_fullStr | In situ imaging of precipitate formation in additively manufactured al-alloys by scanning X-ray fluorescence |
| title_full_unstemmed | In situ imaging of precipitate formation in additively manufactured al-alloys by scanning X-ray fluorescence |
| title_short | In situ imaging of precipitate formation in additively manufactured al-alloys by scanning X-ray fluorescence |
| title_sort | in situ imaging of precipitate formation in additively manufactured al alloys by scanning x ray fluorescence |
| topic | Aluminium alloys powder bed fusion-laser beam precipitation synchrotron in-situ X-ray fluorescence imaging |
| url | https://www.tandfonline.com/doi/10.1080/26889277.2024.2328242 |
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