| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Turk, Christoph
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Effect of intercritical annealing on the microstructure and mechanical properties of a PH 13-8 Mo maraging steelcitations
- 2024Multiscale in-situ observations of the micro- and nanostructure of a PH 13-8 Mo maraging steel during austenitizationcitations
- 2022Optimization of the post-process heat treatment strategy for a Near-α Titanium base alloy produced by laser powder bed fusioncitations
- 2022Potential Causes for Cracking of a Laser Powder Bed Fused Carbon-free FeCoMo Alloycitations
- 2022Cracking mechanism in a laser powder bed fused cold-work tool steelcitations
- 2022Cracking mechanism in a laser powder bed fused cold-work tool steel: The role of residual stresses, microstructure and local elemental concentrationscitations
- 2022Local microstructural evolution and the role of residual stresses in the phase stability of a laser powder bed fused cold-work tool steelcitations
- 2022Local microstructural evolution and the role of residual stresses in the phase stability of a laser powder bed fused cold-work tool steelcitations
- 2022Microstructure Evolution of a New Precipitation-Strengthened Fe–Al–Ni–Ti Alloy down to Atomic Scalecitations
- 2022Formation and evolution of precipitates in an additively manufactured near-α titanium base alloycitations
- 2022Processability and cracking behaviour of novel high-alloyed tool steels processed by laser powder bed fusioncitations
- 2021Atom Probe Tomography of the Oxide Layer of an Austenitic Stainless CrMnN-Steelcitations
- 2021Influence of thermomechanical fatigue loading conditions on the nanostructure of secondary hardening steelscitations
- 2020Defects in a laser powder bed fused tool steelcitations
- 2020Determination of Martensite Start Temperature of High‐Speed Steels Based on Thermodynamic Calculationscitations
- 2019Microstructural evolution of a dual hardening steel during heat treatmentcitations
- 2019Thermomechanical fatigue testing of dual hardening tool steelscitations
- 2015Boron grain boundary segregation in a heat treatable steelcitations
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article
Defects in a laser powder bed fused tool steel
Abstract
<p>Compared to conventional fabrication methods, additive manufacturing (AM) introduces new opportunities in terms of design freedom and part complexity due to the incremental layer-by-layer process. For tooling applications, higher cutting speeds can be realized by implementing of internal cooling channels in tools that could not be fabricated otherwise. However, processability of high-alloyed tool steels with laser powder bed fusion (LPBF) faces certain restrictions. In addition to pore formation, severe cracking caused by a combination of process-related stresses due to the high thermal gradient and susceptible materials may occur. This work aims to clarify the occurrence of process-related defects in dependence of the applied energy input of a high-alloyed cold-work tool steel and to correlate it to the evolution of microstructure respectively solidification structure. Defect surfaces and structural evolution are investigated. The results exhibit that with increasing energy input porosity changes from lack-of-fusion to keyhole porosity. Most recently published investigations suggest cold cracking as predominant failure mechanism during LPBF of tool steels. However, for the investigated material, the present study clearly reveals that, irrespective of the chosen energy input, hot cracks are formed. Crack propagation can be connected to the solidification structure and possible thermal stress accumulations caused by the process.</p>