Publications, Conference Contributions & Awards

2024

Publications in peer-reviewed journals
  • Käfer, M., Dohnal, F., Goettgens, V., Stajkovic, J., Brunner, M., & Leichtfried, G. (2024). Experimental verification of additively manufactured stacked multi-wedge acoustic black holes in beams for low frequency. Mechanical Systems and Signal Processing, 208, 111065.
  • Goettgens, V. S., Weber, L., Braun, J., Kaserer, L., Letofsky-Papst, I., Mitsche, S., ... & Leichtfried, G. (2024). Microstructure and Mechanical Properties of Ti-6Al-4V In Situ Alloyed with 3 wt% Cr by Laser Powder Bed Fusion. Metals, 14(6), 715.
  • Schimbäck, D., Kaserer, L., Mair, P., Mohebbi, M. S., Staron, P., Maier-Kiener, V., ... & Pogatscher, S. (2024). Advancements in metal additive manufacturing: In-situ heat treatment of aluminium alloys during the laser powder bed fusion process. Materials Science and Engineering: A, 905, 146102.
  • Bakker, M., Kaserer, L., & Maassen, N. Designing and Simulating an additive manufacturable liquid metal heat pipe for future fusion application. Fusion engineering and design 207, No. 114611.
Conference publications
  • Goettgens, V., Letofsky-Papst, I., Leichtfried, G., (2024): Spinodal decomposition in Cu-modified Ti-6Al-4V fabricated by additive manufacturing: tweed structure in Ti69.9Al4.6V2.5Cu23, in: Conference Proceedings:15th World Conference on Titanium Chapter 1: Additive Manufacturing & Repair. London: IOM3, S. 7 - 11.
Presentations
  • Stajkovic, J., Kahl, M., Kaserer, L., Braun, J., Distl, B., Mayr-Schmölzer, B., Leichtfried, G.: Advancing Tungsten LPBF with Pyrometry: Assessing Parameter Stability Using Dimensionless Numbers and Pyrometric Data. World PM 2024, Yokohama, 16.10.2024.
  • Braun, J., Distl, B., Kaserer, L., Leichtfried, G., Mayr-Schmölzer, B., Stajkovic, J.: Carbon-doped tungsten manufactured by Laser Powder Bed Fusion. Materials Science and Engineering MSE 2024, Darmstadt, 25.09.2024.
  • Kaserer, L., Braun, J., Stajkovic, J., Distl, B., Mayr-Schmölzer, B., Leichtfried, G.: PBF-LB adapted alloying strategies for the refractory metal molybdenum. Materials Science and Engineering MSE 2024, Darmstadt, 24.09.2024.
Awards
  • Oral Presentation Award at the World PM 2024 – J. Stajkovic
  • Award of Excellence of the Federal Minister of Education, Science and Research Austria 2024 – V. Goettgens

2023

Publications in peer-reviewed journals
  • Goettgens, V. S., Kaserer, L., Braun, J., Letofsky-Papst, I., Mitsche, S., & Leichtfried, G. (2023). Microstructure of a modulated Ti-6Al-4V–Cu alloy fabricated via in situ alloying in laser powder bed fusion. Materialia, 28, 101731.
  • Schimbäck, D., Kaserer, L., Mair, P., Palm, F., Leichtfried, G., Pogatscher, S., & Hohenwarter, A. (2023). Deformation and fatigue behaviour of additively manufactured Scalmalloy® with bimodal microstructure. International Journal of Fatigue, 172, 107592.
  • Bergmueller, S., Gerhold, L., Fuchs, L., Kaserer, L., & Leichtfried, G. (2023). Systematic approach to process parameter optimization for laser powder bed fusion of low-alloy steel based on melting modes. The International Journal of Advanced Manufacturing Technology, 126(9), 4385-4398.
  • Kaserer, L., Braun, J., Stajkovic, J., Leitz, K. H., Singer, P., Letofsky-Papst, I., ... & Leichtfried, G. (2023). Molybdenum alloy Mo-Ti-Zr-C adapted for laser powder bed fusion with refined isotropic microstructure and excellent high temperature strength. International Journal of Refractory Metals and Hard Materials, 113, 106174.
  • Goettgens, V. S., Kaserer, L., Braun, J., Busch, R., Berthold, L., Patzig, C., & Leichtfried, G. (2023). Microstructural evolution and mechanical properties of Ti-6Al-4V in situ alloyed with 3.5 wt.% Cu by laser powder bed fusion. Materialia, 32, 101928.
  • Kaserer, L., Brennsteiner, D., Braun, J., Goettgens, V., Letofsky-Papst, I., Singer, P., ... & Leichtfried, G. (2023). Solute-induced grain refinement and defect suppression in boron-modified molybdenum manufactured via laser powder-bed fusion. International Journal of Refractory Metals and Hard Materials, 117, 106384.
  • Bergmueller, S., Scheiber, J., Kaserer, L., & Leichtfried, G. (2023). Enhancing equiaxed grain formation in a high-alloy tool steel using dual laser powder bed fusion. Additive Manufacturing, 74, 103727.
  • Mair, Dominik; Renzler, Michael; Kovar, Stanislav; Martinek, Tomas; Kadavy, Tomas; Bergmueller, Simon; Horn, Andrada; Braun, Jakob; Kaserer, Lukas (2023): Evolutionary Optimized 3D WiFi Antennas Manufactured via Laser Powder Bed Fusion. In: IEEE Access 11, S. 121914 - 121923
Conference publications
  • Kaserer, L., Braun, J., Brennsteiner, D., Singer, P., Distl, B., Leitz, K.-H.; Kestler, H., Schafbauer, W., Leichtfried, G. (2023). Comparison of Different Alloying Concepts for Mo for Improving Component Strength and Quality in LPBF, in: European Powder Metallurgy Association (EPMA): Euro PM2023 Proceedings, Indivdiual Papers. 1st-4th October, Lissabon. London: European Powder Metallurgy Association (EPMA)
Presentations
  • Kaserer, L., Braun, J., Stajkovic, J., Brennsteiner, D., Singer, P., Distl, B., Leitz, K.-H., Kestler, H., Schafbauer, W., Leichtfried, G.: Comparison of different alloying concepts for Mo for improving component strength and quality in LPBF. Euro PM2023, Lissabon, 04.10.2023.
  • Goettgens, V., Letofsky Papst, I., Leichtfried, G.: Spinodal decomposition in Cu-modified Ti-6Al-4V fabricated by additive manufacturing: tweed structure in Ti69.9Al4.6V2.5Cu23. World Titanium Conference 2023, Edinburgh, 14.06.2023
Awards
  • Hypo Tirol Bank Dissertation Award 2023 – J. Braun

2022

Publications in peer-reviewed journals
  • Schimbäck, D., Mair, P., Bärtl, M., Palm, F., Leichtfried, G., Mayer, S., ... & Pogatscher, S. (2022). Alloy design strategy for microstructural-tailored scandium-modified aluminium alloys for additive manufacturing. Scripta Materialia, 207, 114277.
  • Braun, J., Kaserer, L., Stajkovic, J., Kestler, H., & Leichtfried, G. (2022). Grain refinement mechanisms of alloying molybdenum with carbon manufactured by laser powder bed fusion. Materials & Design, 215, 110507.
  • Mair, P., Braun, J., Kaserer, L., March, L., Schimbäck, D., Letofsky-Papst, I., & Leichtfried, G. (2022). Unique microstructure evolution of a novel Ti-modified Al-Cu alloy processed using laser powder bed fusion. Materials Today Communications, 31, 103353.
  • Schimbäck, D., Mair, P., Kaserer, L., Perfler, L., Palm, F., Leichtfried, G., & Pogatscher, S. (2022). An improved process scan strategy to obtain high-performance fatigue properties for Scalmalloy®. Materials & Design, 224, 111410.
  • Mair, P., Kaserer, L., Braun, J., Stajkovic, J., Klein, C., Schimbäck, D., ... & Leichtfried, G. (2022). Dependence of mechanical properties and microstructure on solidification onset temperature for Al2024–CaB6 alloys processed using laser powder bed fusion. Materials Science and Engineering: A, 833, 142552.
  • Riener, K., Pfalz, T., Funcke, F., & Leichtfried, G. (2022). Processability of high-strength aluminum 6182 series alloy via laser powder bed fusion (LPBF). The International Journal of Advanced Manufacturing Technology, 1-15.
  • Bergmueller, S., Kaserer, L., Fuchs, L., Braun, J., Weinberger, N., Letofsky-Papst, I., & Leichtfried, G. (2022). Crack-free in situ heat-treated high-alloy tool steel processed via laser powder bed fusion: microstructure and mechanical properties. Heliyon, 8(8).
  • Mair, P., Letofsky-Papst, I., & Leichtfried, G. (2022). Microstructural features and mechanical properties of a novel Ti-and Zr-modified Al-Mn alloy processed by laser powder bed fusion. Journal of Alloys and Compounds, 897, 163156.
  • Riener, K., Nagler, A., Letofsky-Papst, I., & Leichtfried, G. (2022). Processing of Aluminum Alloy 6182 with High Scanning Speed in LPBF by In-Situ Alloying with Zr and Ti Powder. Alloys, 1(3), 277-287.
Conference publications
  • Bergmueller, S., Kaserer, L., Leichtfried, G. (2022). In-situ and Ex-situ Heat Treatment of LPBF PM HSS: Solid Phase Transformation and Carbide Precipitation Behavior During Laser Powder Bed Fusion and Tempering of High Speed Steel Parts, in: EPMA: World PM 2022 Conference Proceedings. 9-13 October 2022, Lyon. London: European Powder Metallurgy Association (EPMA), ISBN 978-1-899072-55-2.
  • Goettgens, V., Leichtfried, G., Mair, P., Mitsche, S. (2022). Feasibility Study of Fabricating a Partly Amorphous Copper-Rich Titanium Alloy Via In-Situ Alloying in Laser Powder Bed Fusion, in: EPMA: World PM 2022 Conference Proceedings. 9-13 October 2022, Lyon. London: European Powder Metallurgy Association (EPMA), ISBN 978-1-899072-55-2.
Presentations
  • Bergmueller, S., Kaserer, L., Leichtfried, G.: In-situ And Ex-situ Heat Treatment Of LPBF PM HSS: Solid Phase Transformation And Carbide Precipitation Behavior During Laser Powder Bed Fusion And Tempering Of High Speed Steel Parts. World PM 2022, Lyon, 12.10.2022.
  • Goettgens, V., Leichtfried, G., Mair, P., Mitsche, S.: Feasibility Study Of Fabricating A Partly Amorphous Copper-rich Titanium Alloy Via In-situ Alloying In Laser Powder Bed Fusion. World PM 2022, Lyon, 11.10.2022.
  • Kaserer, L., Braun, J., Kestler, H., Schafbauer, W., Singer, P., Leichtfried, G.: Additive Manufacturing of Molybdenum and Tungsten - Influence of Carbon Addition on Solidification, Microstructure and Properties. 20th Plansee Seminar, Reutte, 01.06.2022.
Awards
  • 1st prize of the EPMA Powder Metallurgy Thesis Competition 2022 in the PhD category – L. Kaserer
  • Hypo Tirol Bank Dissertation Award 2022 – L. Kaserer

2021

Publications in peer-reviewed journals
  • Riener, K., Oswald, S., Winkler, M., & Leichtfried, G. J. (2021). Influence of storage conditions and reconditioning of AlSi10Mg powder on the quality of parts produced by laser powder bed fusion (LPBF). Additive Manufacturing, 39, 101896.
  • Mair, P., Kaserer, L., Braun, J., Weinberger, N., Letofsky-Papst, I., & Leichtfried, G. (2021). Microstructure and mechanical properties of a TiB2-modified Al–Cu alloy processed by laser powder-bed fusion. Materials Science and Engineering: A, 799, 140209.
  • Schimbäck, D., Braun, J., Leichtfried, G., Clemens, H., & Mayer, S. (2021). Laser powder bed fusion of an engineering intermetallic TiAl alloy. Materials & Design, 201, 109506.
  • Mair, P., Goettgens, V. S., Rainer, T., Weinberger, N., Letofsky-Papst, I., Mitsche, S., & Leichtfried, G. (2021). Laser powder bed fusion of nano-CaB6 decorated 2024 aluminum alloy. Journal of Alloys and Compounds, 863, 158714.
  • Haferkamp, L., Haudenschild, L., Spierings, A., Wegener, K., Riener, K., Ziegelmeier, S., & Leichtfried, G. J. (2021). The influence of particle shape, powder flowability, and powder layer density on part density in laser powder bed fusion. Metals, 11(3), 418.
Conference publications
  • Kaserer, L., Rissbacher, L., Braun, J., Leichtfried, G. (2021). Feasibility of grain refinement by heterogeneous nucleation in Mo processed via Laser Powder Bed Fusion, in: EuroPM2021, ISBN: 978-1-899072-54-5
  • Mair, P., Letofsky-Papst, I., Leichtfried, G. (2021). Microstructure and Mechanical Properties of Al Cu Mg Ag Ti B Processed by Laser Powder Bed Fusion: The Effect of Heat Treatment, in: Powder Metallurgy and Particulate Materials - 2021: Proceedings of the 2021 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2021. Princeton: Metal Powder Industries Federation, ISBN 978-1-94-369427-3.
Presentations
  • Kaserer, L., Rissbacher, L., Braun, J., Kestler, H., Leichtfried, G.: Feasibility of grain refinement by heterogeneous nucleation in molybdenum processed via Laser Powder Bed Fusion. Euro PM2021 - International Powder Metallurgy Congress & Exhibition, online, 20.10.2021.
  • Mair, P., Letofsky-Papst, I., Leichtfried, G.: Microstructure and Mechanical Properties of Al Cu Mg Ag Ti B Processed by Laser Powder Bed Fusion: The Effect of Heat Treatment. PowderMet 2021, online, 20.06.2021.
Awards
  • 2021 H.R. “Russ” Ogden Award from American Society for Testing and Materials (ASTM) - G. Leichtfried
  • ÖWGP Dissertation Award 2021 (1st place) – L. Kaserer

2020

Publications in peer-reviewed journals
  • Braun, J., Kaserer, L., Letofsky-Papst, I., Leitz, K. H., Kestler, H., & Leichtfried, G. (2020). On the role of carbon in molybdenum manufactured by Laser Powder Bed Fusion. International Journal of Refractory Metals and Hard Materials, 92, 105283.
  • Riener, K., Albrecht, N., Ziegelmeier, S., Ramakrishnan, R., Haferkamp, L., Spierings, A. B., & Leichtfried, G. J. (2020). Influence of particle size distribution and morphology on the properties of the powder feedstock as well as of AlSi10Mg parts produced by laser powder bed fusion (LPBF). Additive Manufacturing, 34, 101286.
  • Kaserer, L., Braun, J., Stajkovic, J., Leitz, K. H., Singer, P., Letofsky-Papst, I., ... & Leichtfried, G. (2020). Microstructure and mechanical properties of molybdenum-titanium-zirconium-carbon alloy TZM processed via laser powder-bed fusion. International Journal of Refractory Metals and Hard Materials, 93, 105369.
  • Kaserer, L., Bergmueller, S., Braun, J., & Leichtfried, G. (2020). Vacuum laser powder bed fusion—track consolidation, powder denudation, and future potential. The International Journal of Advanced Manufacturing Technology, 110, 3339-3346.
Conference publications
  • Braun, J., Kaserer, L., Letofsky-Papst, I., Leitz, K.-H., Kestler, H., Leichtfried, G. (2020). The Effect of Oxygen and Carbon on Mo in Laser Powder Bed Fusion (LPBF), in: EuroPM2020, ISBN: 978-1-899072-51-4
  • Kaserer, L., Bergmueller, S., Braun, J., Leichtfried, G. (2020). On the Role of Process Pressure in Laser Powder Bed Fusion: Mechanisms and Effects, in: EuroPM2020, ISBN: 978-1-899072-51-4
Presentations
  • Braun, J., Kaserer, L., Leichtfried, G., Leitz, K.-H., Kestler, H.: The Effect of Oxygen and Carbon on Molybdenum in Laser Powder Bed Fusion. Euro PM 2020 Virtual Congress, virtuell, 07.10.2020.
  • Kaserer, L., Bergmueller, S., Braun, J., Leichtfried, G.: On The Role of Process Pressure in Laser Powder Bed Fusion: Mechanisms, Powder Denudation and Effects on the Powder Bed. Euro PM 2020 Virtual Congress, virtuell, 06.10.2020.
  • Braun, J., Leichtfried, G., Kaserer, L.: Additive Fertigung von Metallen: Status, Herausforderungen und Chancen. SPS-Tagung 2020: Additive Fertigung - Neuartige Perspektiven in der Produktentwicklung, Kufstein, online, 13.11.2020.
Awards
  • Startup Tirol Award (1st place) – J. Braun, S. Bergmueller, L. Kaserer, J. Stajkovic, G. Leichtfried
  • MatNano-Publication Award 2020 – P. Mair, L. Kaserer, J. Braun, N. Weinberger, I. Letofsky-Papst, G. Leichtfried
  • Recognition award from the jury of the Best Student Paper Award 2020 of the University of Innsbruck for the Publication „Fully dense and crack free molybdenum manufactured by Selective Laser Melting through alloying with carbon” –L. Kaserer, J. Braun, J. Stajkovic, K.H. Leitz, B. Tabernig, P. Singer, I. Letofsky-Papst, H. Kestler, G. Leichtfried

2019

Publications in peer-reviewed journals
  • Braun, J., Kaserer, L., Stajkovic, J., Leitz, K. H., Tabernig, B., Singer, P., ... & Leichtfried, G. (2019). Molybdenum and tungsten manufactured by selective laser melting: Analysis of defect structure and solidification mechanisms. International Journal of Refractory Metals and Hard Materials, 84, 104999.
  • Kaserer, L., Braun, J., Stajkovic, J., Leitz, K. H., Tabernig, B., Singer, P., ... & Leichtfried, G. (2019). Fully dense and crack free molybdenum manufactured by Selective Laser Melting through alloying with carbon. International Journal of Refractory Metals and Hard Materials, 84, 105000.
Presentations
  • Leitz, K.-H., Braun, J., Kaserer, L., Stajkovic, J., Singer, P., Tabernig, B., Kestler, H., Leichtfried, G.: Additive Manufacturing of Pore and Crack Free Molybdenum and Tungsten by Selective Laser Melting. Euro PM2019, Maastricht, 16.10.2019.
Conference publications
  • Leitz, K.-H., Braun, J., Kaserer L., Stajkovic, J., Singer, P., Tabernig B., Kestler, H., Leichtfried, G. (2019). Additive Manufacturing of Pore and Crack Free Mo and W by Selective Laser Melting, in: Euro PM2019, At Maastricht, ISBN: 978-1-899072-51-4
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