A central research focus of the group is the in-situ control of microstructure during additive manufacturing processes. High process temperatures and defined thermal cycles lead to local changes in material composition, such as selective evaporation of alloying elements or process-induced redistribution, which significantly influence microstructure and mechanical properties of the components.
The work follows a multiscale, multiphysics approach and covers powder bed processes using both electron beam and laser sources. Flexible scan and process strategies in modern systems allow targeted control of the local thermal history. Complementary numerical simulation tools consistently capture temperature fields, melt pool dynamics, alloy composition changes, and microstructure evolution, enabling predictive, simulation-based control of microstructure at the component level.
These approaches allow for targeted parameter selection, robust and reproducible process strategies, and a significant reduction of experimental development cycles. At the same time, they provide a foundation for functionally integrated material and component design, where thermal history, alloy chemistry, and microstructure are deliberately combined.
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Publications:
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High-throughput numerical exploration of preheating and sintering in electron beam powder bed fusion
In: Thermal Science and Engineering Progress 69 (2026), Article No.: 104405
ISSN: 2451-9057
DOI: 10.1016/j.tsep.2025.104405 - , , , :
Simulation-driven development of in-situ alloying Cu-25Cr by electron beam powder bed fusion
In: Additive Manufacturing 109 (2025), Article No.: 104874
ISSN: 2214-7810
DOI: 10.1016/j.addma.2025.104874 - , , , :
Processing Strategies for Electron Beam Based Powder Bed Fusion
In: Dietmar Drummer, Michael Schmidt (ed.): Progress in Powder Based Additive Manufacturing, Springer Nature, 2025, p. 127-148 (Springer Tracts in Additive Manufacturing, Vol.Part F386)
DOI: 10.1007/978-3-031-78350-0_7 - , , :
Correction to: A Scan Strategy Based Compensation of Cumulative Heating Effects in Electron Beam Powder Bed Fusion (Progress in Additive Manufacturing, (2024), 10.1007/s40964-024-00807-6)
In: Progress in Additive Manufacturing (2024)
ISSN: 2363-9512
DOI: 10.1007/s40964-024-00841-4 - , , :
A Scan Strategy Based Compensation of Cumulative Heating Effects in Electron Beam Powder Bed Fusion
In: Progress in Additive Manufacturing (2024)
ISSN: 2363-9512
DOI: 10.1007/s40964-024-00807-6 - , , , :
A CALPHAD-Informed Enthalpy Method for Multicomponent Alloy Systems with Phase Transitions
In: Modelling 5 (2024), p. 367-391
ISSN: 2673-3951
DOI: 10.3390/modelling5010020 - , , , :
A new approach of preheating and powder sintering in electron beam powder bed fusion
In: International Journal of Advanced Manufacturing Technology (2024)
ISSN: 0268-3768
DOI: 10.1007/s00170-024-13966-1 - , , :
Graph-based spot melting sequence for electron beam powder bed fusion
In: Additive Manufacturing 91 (2024), Article No.: 104321
ISSN: 2214-7810
DOI: 10.1016/j.addma.2024.104321 - , , :
A return time compensation scheme for complex geometries in electron beam powder bed fusion
In: Additive Manufacturing 76 (2023), p. 103767
ISSN: 2214-7810
DOI: 10.1016/j.addma.2023.103767 - , , :
Volume of fluid based modeling of thermocapillary flow applied to a free surface lattice Boltzmann method
In: Journal of Computational Physics 492 (2023), Article No.: 112441
ISSN: 0021-9991
DOI: 10.1016/j.jcp.2023.112441 - , , , :
High-Throughput Numerical Investigation of Process Parameter-Melt Pool Relationships in Electron Beam Powder Bed Fusion
In: Modelling 4 (2023), p. 336-350
ISSN: 2673-3951
DOI: 10.3390/modelling4030019 - , , , :
Basic Mechanism of Surface Topography Evolution in Electron Beam Based Additive Manufacturing
In: Materials 15 (2022), Article No.: 4754
ISSN: 1996-1944
DOI: 10.3390/ma15144754 - , , , , :
New grain formation mechanisms during powder bed fusion
In: Materials 14 (2021), Article No.: 3324
ISSN: 1996-1944
DOI: 10.3390/ma14123324 - , , , , , , , , :
How electron beam melting tailors the Al-sensitive microstructure and mechanical response of a novel process-adapted γ-TiAl based alloy
In: Materials & Design 212 (2021), Article No.: 110187
ISSN: 0264-1275
DOI: 10.1016/j.matdes.2021.110187 - , , , :
Multi-material model for the simulation of powder bed fusion additive manufacturing
In: Computational Materials Science 194 (2021)
ISSN: 0927-0256
DOI: 10.1016/j.commatsci.2021.110415 - , , , :
A multivariate meltpool stability criterion for fabrication of complex geometries in electron beam powder bed fusion
In: Additive Manufacturing 45 (2021), Article No.: 102051
ISSN: 2214-7810
DOI: 10.1016/j.addma.2021.102051 - , , , :
SAMPLE: A Software Suite to Predict Consolidation and Microstructure for Powder Bed Fusion Additive Manufacturing
In: Advanced Engineering Materials (2019), Article No.: 1901270
ISSN: 1438-1656
DOI: 10.1002/adem.201901270 - , , , :
Comparison of passive scalar transport models coupled with the Lattice Boltzmann method
In: Computers & Mathematics with Applications (2018)
ISSN: 0898-1221
DOI: 10.1016/j.camwa.2018.01.017 - , , , :
Numerical simulation of multi-component evaporation during selective electron beam melting of TiAl
In: Journal of Materials Processing Technology 247 (2017), p. 280-288
ISSN: 0924-0136
DOI: 10.1016/j.jmatprotec.2017.04.016 - , , :
A multi-component evaporation model for beam melting processes
In: Modelling and Simulation in Materials Science and Engineering 25 (2017), Article No.: 025003
ISSN: 1361-651X
DOI: 10.1088/1361-651X/aa5289 - , , , , :
Predictive numerical simulations of processing windows for powder bed based additive manufacturing
2017 Simulation for Additive Manufacturing, Sinam 2017 (Munich, 11. October 2017 - 13. October 2017)
In: Simulation for Additive Manufacturing 2017, Sinam 2017 2017