| 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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Seidel, Christian
Hochschule München University of Applied Sciences
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Investigation on surface characteristics of wall structures out of stainless steel 316L manufactured by laser powder bed fusioncitations
- 2024Cold spray forming: a novel approach in cold spray additive manufacturing of complex parts using 3D-printed polymer moldscitations
- 2023CHANGE IN MICROSTRUCTURE AND HARDNESS OF ADDITIVELY MANUFACTURED AISI H13 STEEL BY HEAT TREATMENT AND NITRIDING PROCESSEScitations
- 2023Cold spray forming : a novel approach in cold spray additive manufacturing of complex parts using 3D-printed polymer moldscitations
- 2023Investigation on a predetermined point of failure for stainless steel 316L pressure loaded components made by laser powder bed fusion through stress analysis and experimental testingcitations
- 2022Implementation of a multi-material mechanism in a laser-based powder bed fusion (PBF-LB) machinecitations
- 2022Capability of multi-material laser-based powder bed fusion - development and analysis of a prototype large bore engine componentcitations
- 2022Influence of Powder Properties and Process Parameters on the High Temperature PBF-LB/M Manufacturability of Filigree Tungsten Components
- 2021Review on additive hybrid- and multi-material-manufacturing of metals by powder bed fusion: State of technology and development potentialcitations
- 2020Procedure and validation of the implementation of automated sensor integration kinematics in an LPBF systemcitations
- 2017Transformation kinetics during heat treatment of additive manufactured alloys AlSi10Mg & X5CrNiCuNb16-4 ; Umwandlungskinetik während der Wärmebehandlung von additiv gefertigten Legierungen AlSi10Mg und X5CrNiCuNb16-4
- 2015Economic and ecological evaluation of hybrid additive manufacturing technologies based on the combination of laser metal deposition and CNC machiningcitations
Places of action
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article
CHANGE IN MICROSTRUCTURE AND HARDNESS OF ADDITIVELY MANUFACTURED AISI H13 STEEL BY HEAT TREATMENT AND NITRIDING PROCESSES
Abstract
<jats:p>AISI H13 steel samples were additively manufactured using a laser powder bed fusion (LPBF) system. The effect of annealing tem-perature, quenching & tempering, and nitriding were determined. The microstructure and properties of the samples were investigated using optical microscopy, scanning electron microscopy, electron backscattered diffraction, electron probe micro-analysis, X-ray diffraction, roughness measurement, and a hardness tester. The results show that the as-built AISI H13 steel sample had a roughness on the surface and pores inside. The microstructure consisted of martensite and retained austenite. The average hardness was 460 HV, and the porosity was 0.086 %. The annealing process helped homogenize the microstructure, increase the density, and reduce the porosity and hardness of the LPBF-manufactured sample. The quenching process helped increase the hardness of the steel to the maximum of 787 HV, then the tempering process reduced the hardness to 572 HV. Heat treatment and nitriding processes tended to increase the martensite block size, reduce the retained austenitic content, and precipitate the V-Mo-rich carbide in the LPBF-manufactured AISI H13 steel. After nitriding was conducted, the nitriding case depth was 87 um, and the surface hardness increased up to higher than 1020 HV due to the formation of CrN and Fe3-4N.</jats:p>