| 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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Gustmann, Tobias
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Exploring the oxidation behavior of undiluted and diluted iron particles for energy storage: Mössbauer spectroscopic analysis and kinetic modeling
- 2023Characterization of Filigree Additively Manufactured NiTi Structures Using Micro Tomography and Micromechanical Testing for Metamaterial Material Modelscitations
- 2023Achieving exceptional wear resistance in a crack-free high-carbon tool steel fabricated by laser powder bed fusion without pre-heatingcitations
- 2022Controlling the Young’s modulus of a ß-type Ti-Nb alloy via strong texturing by LPBFcitations
- 2022Additively manufactured AlSi10Mg lattices – Potential and limits of modelling as-designed structurescitations
- 2022Additive Manufacturing of Binary Ni–Ti Shape Memory Alloys Using Electron Beam Powder Bed Fusion: Functional Reversibility Through Minor Alloy Modification and Carbide Formationcitations
- 2022Additive Manufacturing of Binary Ni–Ti Shape Memory Alloys Using Electron Beam Powder Bed Fusion: Functional Reversibility Through Minor Alloy Modification and Carbide Formation
- 2022Additive Manufacturing of Binary Ni–Ti Shape Memory Alloys Using Electron Beam Powder Bed Fusion: Functional Reversibility Through Minor Alloy Modification and Carbide Formation
- 2022In situ detection of cracks during laser powder bed fusion using acoustic emission monitoringcitations
- 2022Designing the microstructural constituents of an additively manufactured near β Ti alloy for an enhanced mechanical and corrosion responsecitations
- 2021Laser Powder Bed Fusion Processing of Fe-Mn-Al-Ni Shape Memory Alloy - On the Effect of Elevated Platform Temperatures
- 2021Laser Powder Bed Fusion Processing of Fe-Mn-Al-Ni Shape Memory Alloy—On the Effect of Elevated Platform Temperaturescitations
- 2021Development and characterization of a metastable Al-Mn-Ce alloy produced by laser powder bed fusion
- 2020Processing a biocompatible Ti-35Nb-7Zr-5Ta alloy by selective laser meltingcitations
- 2019Influence of substrate plate heating on the properties of an additively manufactured Cu-Al-Ni-Mn shape-memory alloy ; Einfluss einer Substratheizung auf die Eigenschaften einer additiv hergestellten Cu-Al-Ni-Mn Formgedächtnislegierung
- 2019Selective laser melting of Cu-based shape memory alloys
- 2018Microstructural characterization of a laser surface remelted Cu-based shape memory alloycitations
- 2018Enhancing the life cycle behaviour of Cu-Al-Ni shape memory alloy bimorph by Mn additioncitations
- 2018Laser beam melting for added value in tooling applications ; Mehrwert durch Laserstrahlschmelzen im Werkzeugbau
- 2015Phase formation, thermal stability and mechanical properties of a Cu-Al-Ni-Mn shape memory alloy prepared by selective laser meltingcitations
Places of action
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article
Achieving exceptional wear resistance in a crack-free high-carbon tool steel fabricated by laser powder bed fusion without pre-heating
Abstract
Laser powder bed fusion (LPBF) for the fabrication of dense components used for tooling applications, is highly challenging. Residual stresses, which evolve in the additively manufactured part, are inherent to LPBF processing. An additional stress contribution in high-carbon steels arises from the austenite-to- martensite phase transformation, which may eventually lead to cracking or even delamination. As an alternative to pre-heating the base plate, which is not striven by industry, lowering the martensite con- tent which forms in the part, is essential for the fabrication of dense parts by LPBF of high-carbon tool steels which are then adapted to LPBF. In this study, a successful strategy demonstrates the process- ing of the Fe85Cr4Mo1V1W8C1 (wt%) high-carbon steel by LPBF into dense parts (99.8%). The hierarchi- cal microstructure consists of austenitic and martensitic grains separated by elemental segregations in which nanoscopic carbide particles form a network. A high density of microsegregation was observed at the molten pool boundary ultimately forming a superstructure. The LPBF-fabricated steel shows a yield strength, ultimate compressive stress, and total strain of 1210 MPa, 3556 MPa, and 27.4%, respectively. The mechanical and wear performance is rated against the industrially employed and highly wear-resistant 1.2379 tool steel taken as the reference. Despite its lower macro-hardness, the LPBF steel (58.6 HRC, 0.0061 mm$^3$ Nm$^{–1}$ ) shows a higher wear resistance than the reference steel (62.6 HRC, 0.0078 mm$^3$ Nm$^{–1}$ ). This behavior results from the wear-induced formation of martensite in a microscale thick layer directly at the worn surface, as it was proven via high-energy X-ray diffraction mapping.