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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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Klein, Thomas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Investigation of complex single-walled intersecting structures fabricated by wire-arc directed energy depositioncitations
- 2024Residual Stresses in a Wire and Arc-Directed Energy-Deposited Al–6Cu–Mn (ER2319) Alloy Determined by Energy-Dispersive High-Energy X-ray Diffractioncitations
- 2024Demonstration of the Fabrication of a Large-Scale Aluminum Structure by Wire-Arc Directed Energy Deposition Using a Novel Aluminum Alloycitations
- 2024Novel Magnesium Nanocomposite for Wire-Arc Directed Energy Deposition
- 2024Novel Magnesium Nanocomposite for Wire-Arc Directed Energy Deposition
- 2024Physical Simulation of microstructures generated by wire-arc directed energy deposition
- 2023Effect of wire-arc directed energy deposition on the microstructural formation and age-hardening response of the Mg-9Al-1Zn (AZ91) alloycitations
- 2023Wire arc additive manufacturing of light metals: From experimental investigation to numerical process simulation and microstructural modelingcitations
- 2023Effects on Microstructure and Mechanical Properties of the Addition of Co, Cr, and Fe to the Eutectoid System Ti-6.5Cu
- 2023Effects of Fe and Al additions on the eutectoid transformation and its transformation products in Ti-5.9(wt.%)Cu
- 2023High-temperature microstructure evolution of an advanced intermetallic nano-lamellar γ-TiAl-based alloy and associated diffusion processescitations
- 2023High-temperature microstructure evolution of an advanced intermetallic nano-lamellar γ-TiAl-based alloy and associated diffusion processescitations
- 2023Titanium MMCs With Enhanced Specific Young’s Modulus via Powder Hot Extrusion
- 2023Microstructure and Mechanical Properties of an Advanced Ag-Microalloyed Aluminum Crossover Alloy Tailored for Wire-Arc Directed Energy Depositioncitations
- 2022Quench rate sensitivity of age-hardenable Al-Zn-Mg-Cu alloys with respect to the Zn/Mg ratio: An in situ SAXS and HEXRD studycitations
- 2022Characterisation of structural modifications on cold-formed AA2024 substrates by wire arc additive manufacturingcitations
- 2022Quench rate sensitivity of age-hardenable Al-Zn-Mg-Cu alloys with respect to the Zn/Mg ratiocitations
- 2022Drahtbasierte additive Fertigung der Luftfahrtlegierung AA2024
- 2021Microstructure evolution induced by the intrinsic heat treatment occurring during wire-arc additive manufacturing of an Al-Mg-Zn-Cu crossover alloycitations
- 2020High-temperature phenomena in an advanced intermetallic nano-lamellar γ-TiAl-based alloy. Part Icitations
- 2020An Advanced TiAl Alloy for High-Performance Racing Applicationscitations
- 2019The creep behavior of a fully lamellar γ-TiAl based alloycitations
- 2019In situ and atomic-scale investigations of the early stages of γ precipitate growth in a supersaturated intermetallic Ti-44Al-7Mo (at.%) solid solutioncitations
- 2019Formation of "carbide-free zones" resulting from the interplay of C redistribution and carbide precipitation during bainitic transformationcitations
- 2018Intermetallicscitations
- 2016Advancement of Compositional and Microstructural Design of Intermetallic γ-TiAl Based Alloys Determined by Atom Probe Tomographycitations
- 2015Carbon distribution in multi-phase γ-TiAl based alloys and its influence on mechanical properties and phase formationcitations
- 2014Distribution of alloying elements within the constituent phases of a C-containing gamma-TiAl based alloy studied by atom probe tomographycitations
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article
An Advanced TiAl Alloy for High-Performance Racing Applications
Abstract
<p>Requirements and strict regulations for high-performance racing applications involve the use of new and innovative lightweight structural materials. Therefore, intermetallic γ-TiAl-based alloys enable new opportunities in the field due to their lower density compared to commonly used Ni-base superalloys. In this study, a β-solidifying TiAl alloy was examined toward its use as structural material for inlet and outlet valves. The nominal composition of the investigated TNM alloy is Ti–43.5Al–4Nb–1Mo–0.1B (in at%), which enables an excellent formability at elevated temperatures due to the presence of bcc β-phase. Different hot-extrusion tests on an industrial scale were conducted on the cast and hot isostatic pressed material to determine the ideal microstructure for the respective racing application. To simulate these operation conditions, hot tensile tests, as well as rotational bending tests, at room temperature were conducted. With a higher degree of deformation, an increasing strength and fatigue limit was obtained, as well as a significant increment of ductility. The fracture surfaces of the rotational bending test specimens were analyzed using scanning electron microscopy, revealing the relationship between crack initiation and microstructural constituents. The results of this study show that the mechanical performance of extruded TiAl material can be tailored via optimizing the degree of hot-extrusion.</p>