Keynote speakers

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Dr. Mária Teresa Pérez-Prado

Abstract

3D printing of metals for energy saving application

Additive manufacturing technologies allow exceptional design freedom, part customization and component lightweighting, while facilitating the generation of unprecedented micro- and metastructures. This talk will further emphasize their potential as tools for sustainable manufacturing. Highlighted examples include laser powder bed fusion of soft magnetic amorphous metals for efficient e-motors [1,2] with reduced energy losses, and of lattice structures with meta-precipitates with exceptional specific structural properties [3,4].

Short Bio

Dr. Mária Teresa Pérez-Prado is head of Sustainable Metallurgy group at IMDEA Materials Institute. She was Division Leader between 2014 and 2017 and Deputy Director between 2017 and 2021. From 2018 to 2022 she was Manager of the programme on Structural Materials at the Spanish National Science Foundation. Dr. Pérez-Prado got a PhD in Physics at the Complutense University in Madrid in 1998 and an MBA at INSEAD, France, in 2008. After a 2-year postdoctoral stay at the University of California in San Diego, USA, she joined the National Center for Metals Research (Madrid, Spain) in 2001, where she was granted a Tenured Scientist position in 2004. She currently is a member of the Scientific Council of several international institutions including the NOMATEN Center of Excellence (Poland, 2018-2023), the IRT Jules Verne (France), the Henry Royce Institute (UK), and the European Space Agency (2018-2024). She has published more than 150 papers (h51, 9700 citations) in the field of physical metallurgy and advanced manufacturing. She was included in the Stanford list of world´s top 2% scientists (Ioannidis et al. PLoS Biol, 2020,2021).

Dr. Dominic Bartels

Abstract

Short Bio

Dr. Bartels is currently a Postdoctoral Researcher and Academic Council Member at the Chair of Photonic Technologies at FAU Erlangen-Nürnberg, where he leads projects in the fields of laser beam shaping and additive manufacturing, with a particular focus on multi-material metal processing. He is also head of the Business Unit Metals at Bayerisches Laserzentrum GmbH, where he is responsible for the acquisition and coordination of industry-driven research projects. He was instrumental in the Scientific Management of the Additive Manufacturing group at FAU, where he led research on laser-based metal deposition. His work has contributed significantly to the development of novel materials and technologies, and he has published numerous influential articles in renowned journals. With a passion for innovation and excellence, he has also secured several patents related to manufacturing processes and is actively involved in mentoring young researchers.

Dr. Jan Haubrich

Abstract

Development of heat treatments for additively manufactured alloys

Additive Manufacturing using technologies such as Laser-based Powder Bed Fusion of metals (PBF-LB/M) holds great promise for the fabrication of complex, highly individualized or integrated components for aerospace applications and beyond. However, when it comes to demanding conditions such as faced for instance by high-temperature materials in propulsion systems, the materials’ properties have to be tailored to meet the requirements. Almost always the materials properties in the “as-printed” state that typically corresponds to a metastable microstructure can be improved substantially by a proper heat treatment. Varying the postprocessing chain, the material can even be tuned to, e.g., high ductility, yield strength or other desired properties. At the German Aerospace Center, we investigate heat treatments for a variety of materials including aluminium and titanium alloys, titanium aluminides or nickelbase superalloys. Using characterization techniques such as, e.g., in situ high-energy X-ray diffraction, computed tomography and electron microscopy tools, we systematically study phase transformations, recrystallization or alloying and diffusion effects to develop customized heat treatment strategies. The talk will provide an overview on the activities in additive manufacturing and heat treatments carried out in recent years.

Short Bio

Dr. Jan Haubrich is head of the Sustainable Materials and Processes group at the Institute of Materials’ Research of the German Aerospace Research Center since 2014. The work of his team focuses particularly on laser additive manufacturing (AM) and heat treatment of aerospace materials. This complemented by the development of new alloys for AM as well as manufacturing chains of novel components, e.g. for gas turbine engines or rocket propulsion. Another area of his expertise is surface and interfaces, used for instance for structural bonding in aerostructures. After his Diploma in Chemistry (2002), he went on to obtain his Doctorate in Physical Chemistry (2007) at the Chairs of Prof. K. Wandelt, University of Bonn, and Philippe Sautet, Ecolé Normale Superieur de Lyon, investigating mechanisms in Surface Chemistry and Catalysis using experimental methods and density functional theory. His previous career stages included Postdoctoral Researcher stays at the Chair of Theoretical Chemistry of Prof. T. Bredow, Rheinische-Friedrich-Wilhelms University (2010-12, Bonn, Germany) and the Chair of Surface Chemistry and Catalysis of Prof. C.M. Friend, Harvard University, Boston (2007-10, Humboldt fellowship). He has published more than 78 articles with 3100 citations (h-index 29).

Prof. Andreas Otto

Abstract

Multiphysic modeling of laser-based AM

Laser-assisted additive manufacturing enables innovative component designs but poses challenges due to strict quality requirements, difficult-to-process materials, and a multitude of adjustable process parameters. These challenges often result in lengthy process development cycles driven by trial-and-error or extensive experimental campaigns, rooted in the complex coupled multi-physics of the process. Physics-based simulations address this by modeling laser-material interactions, including melting, solidification, vaporization, heat transport, and melt pool dynamics. Virtual experiments allow testing advanced strategies, such as tailored beam profiles, and provide insights into cause-effect correlations not observable experimentally. Simulations span different scales, from individual scan tracks to printing multiple layers, revealing phenomena that only occur when considering the multi-scale aspect of the process. Example applications include optimizing beam profiles and scanning strategies to prevent hot cracks, stabilizing vapor capillaries, and tailoring microstructures for improved component performance. These simulations accelerate process development, enabling precise control over additive manufacturing outcomes.

Short Bio

Prof. Andreas Otto is Full Professor and head of the Research Unit of Photonic Technologies at TU Wien, Austria, since 2011. He leads both fundamental and application-oriented research projects in the field of laser-assisted manufacturing using continuous wave and short to ultra short pulsed lasers, employing experimental methods and simulations. Prior to that, he was working at the Chair of Photonic Technologies at FAU Erlangen-Nürnberg, where he completed his Doctorate and Habilitation. Prof. Otto is author of more than 100 peer-reviewed publications and lead developer of the likely most comprehensive software for multiphysical simulation of laser-based manufacturing processes.