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Steven Van Petegem

Paul Scherrer Institute (PSI)

SCHOLARLY PAPERS

10

DOWNLOADS

644

TOTAL CITATIONS

4

Scholarly Papers (10)

1.

Healing of Keyhole Porosity by Means of Defocused Laser Beam Remelting Operando Observation by X-Ray Imaging and Acoustic Emission-Based Detection

Number of pages: 33 Posted: 21 Jul 2023
affiliation not provided to SSRN, KU Leuven, École Polytechnique Fédérale de Lausanne (EPFL), Paul Scherrer Institute (PSI), Empa, Swiss Federal Laboratories for Materials Science and Technology, Paul Scherrer Institute (PSI), University of Turku, University of Turku, Empa, Swiss Federal Laboratories for Materials Science and Technology and École Polytechnique Fédérale de Lausanne (EPFL) - Laboratory of ThermoMechanical Metallurgy (LMTM)
Downloads 96 (709,832)
Citation 3

Abstract:

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Laser powder bed fusion, Acoustic Emission, In-Situ Monitoring, synchrotron X-ray imaging, laser remelting

2.

A Downsized Laser Powder Bed Fusion Device for Operando Neutron Studies: Design and Experiments

Number of pages: 33 Posted: 10 Oct 2024
Paul Scherrer Institute (PSI), University of Patras, Paul Scherrer Institute (PSI), Paul Scherrer Institute (PSI), affiliation not provided to SSRN, École Polytechnique Fédérale de Lausanne (EPFL) - Laboratory of ThermoMechanical Metallurgy (LMTM) and Paul Scherrer Institute (PSI)
Downloads 79 (809,932)

Abstract:

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laser powder bed fusion, operando neutron diffraction and imaging, strain evolution, defect characterization, temperature mapping

3.

Multimodal Synchrotron Characterization of the Formation and Spatial Distribution of Retained Austenite in PBF-LB/M-Manufactured Ferritic-Martensitic Steel

Number of pages: 51 Posted: 27 Aug 2025 Last Revised: 08 Jan 2026
affiliation not provided to SSRN, Paul Scherrer Institute (PSI), affiliation not provided to SSRN, Paul Scherrer Institute (PSI), affiliation not provided to SSRN, Technical University of Denmark - Department of Physics, affiliation not provided to SSRN, Paul Scherrer Institute (PSI) - aboratory for Synchrotron Radiation and Femtochemistry (LSF) and Paul Scherrer Institute (PSI) - Laboratory for Nuclear Materials (LNM)
Downloads 76 (830,555)
Citation 1

Abstract:

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Metal Additive Manufacturing, Martensitic Steel, Residual Austenite, Synchrotron micro-X-Ray Diffraction and Fluorescence, 3D Chemical Imaging

4.

Dynamics of Material Redistribution and Microstructure Formation in Al-Cu Multimaterial

Number of pages: 26 Posted: 25 Nov 2025
Paul Scherrer Institute (PSI), Paul Scherrer Institute (PSI), Royal Melbourne Institute of Technology (RMIT University), Paul Scherrer Institute (PSI), European Synchrotron Radiation Facility (ESRF) and Paul Scherrer Institute (PSI)
Downloads 74 (844,901)

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Additive manufacturing, Functionally graded materials, Fluid flows, Operando, X-ray imaging

5.

Experimental Quantification of Inward Marangoni Convection and its Impact on Keyhole Threshold in Laser Powder Bed Fusion of Stainless Steel

Number of pages: 33 Posted: 20 Oct 2023
Shanghai Jiao Tong University (SJTU) - School of Materials Science and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), KU Leuven, Paul Scherrer Institute (PSI), Paul Scherrer Institute (PSI), École Polytechnique Fédérale de Lausanne (EPFL) - Laboratory of ThermoMechanical Metallurgy (LMTM) and Empa, Swiss Federal Laboratories for Materials Science and Technology
Downloads 73 (852,604)

Abstract:

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Laser powder bed fusion, In-situ synchrotron X-ray imaging, Particle tracing, Inward Marangoni convection, Keyhole threshold

6.

Operando Phase Mapping in Multi-Material Laser Powder Bed Fusion

Number of pages: 31 Posted: 07 Aug 2024
Paul Scherrer Institute (PSI), Paul Scherrer Institute (PSI), Paul Scherrer Institute (PSI), Paul Scherrer Institute (PSI), Swiss Federal Laboratories for Material Science and Technology (EMPA), affiliation not provided to SSRN, University of Patras, Empa, Swiss Federal Laboratories for Materials Science and Technology, École Polytechnique Fédérale de Lausanne (EPFL) - Laboratory of ThermoMechanical Metallurgy (LMTM) and Paul Scherrer Institute (PSI)
Downloads 70 (875,328)

Abstract:

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operando polarization contrast neutron imaging, operando neutron temperature mapping, laser powder bed fusion, multi-material processing, ferromagnetic phase quantification.

7.

Monitoring of Laser-Induced Fast Recrystallization in Ss-316l Through Synchrotron X-Ray Diffraction

Number of pages: 22 Posted: 21 Nov 2023
École Polytechnique Fédérale de Lausanne (EPFL), Paul Scherrer Institute (PSI), École Polytechnique Fédérale de Lausanne (EPFL), École Polytechnique Fédérale de Lausanne (EPFL) - Laboratory of ThermoMechanical Metallurgy (LMTM), KU Leuven, Empa, Swiss Federal Laboratories for Materials Science and Technology, affiliation not provided to SSRN, affiliation not provided to SSRN and École Polytechnique Fédérale de Lausanne (EPFL) - Laboratory of ThermoMechanical Metallurgy (LMTM)
Downloads 67 (899,324)

Abstract:

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Laser Heat treatment (LHT), Recrystallization, In-situ X-ray diffraction, Monitoring.

8.

Physics-based acoustic monitoring of keyhole regime transitions in laser powder bed fusion validated by operando synchrotron X-ray imaging

Number of pages: 35 Posted: 06 May 2026
KU Leuven, KU Leuven, École Polytechnique Fédérale de Lausanne (EPFL), Paul Scherrer Institute (PSI), University of Turku, European Synchrotron Radiation Facility (ESRF), Royal Melbourne Institute of Technology (RMIT University), University of Turku, Paul Scherrer Institute (PSI), affiliation not provided to SSRN, KU Leuven, Lawrence Livermore National Laboratory and École Polytechnique Fédérale de Lausanne (EPFL) - Laboratory of ThermoMechanical Metallurgy (LMTM)
Downloads 40 (1,236,159)

Abstract:

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Laser Powder Bed Fusion, Acoustic emission monitoring, Keyhole Dynamics, Operando Synchrotron X-ray Imaging

9.

Influence of substrate microstructure on defect formation during Al alloy laser powder bed fusion

Number of pages: 24 Posted: 29 Jan 2026
The University of Manchester, Brunel University London, University College London, University College London, University College London - Department of Mechanical Engineering, European Synchrotron Radiation Facility (ESRF), European Synchrotron Radiation Facility (ESRF), IMDEA Materials Institute, Paul Scherrer Institute (PSI), Brunel University London, Oxford Brookes University, University College London - Department of Mechanical Engineering and University College London - Department of Mechanical Engineering
Downloads 40 (1,183,237)

Abstract:

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Laser powder bed fusion, synchrotron X-ray imaging, Microstructure, intermetallics, and defects.

10.

Microstructural Effects of Tungsten Deposition on 415 Steel During PBF-LB/M Additive Manufacturing of Plasma Facing Components

Number of pages: 68 Posted: 19 Jan 2026
affiliation not provided to SSRN, Paul Scherrer Institute (PSI), Paul Scherrer Institute (PSI), affiliation not provided to SSRN, affiliation not provided to SSRN, Paul Scherrer Institute (PSI), affiliation not provided to SSRN, Technical University of Denmark - Department of Physics, affiliation not provided to SSRN, affiliation not provided to SSRN and Paul Scherrer Institute (PSI) - Laboratory for Nuclear Materials (LNM)
Downloads 29 (1,332,057)

Abstract:

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Metallic Additive Manufacturing, Synchrotron chemical imaging, Martensitic Steel, tungsten, Interface