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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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Kaserer, Lukas
Universität Innsbruck
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Microstructure and Mechanical Properties of Ti-6Al-4V In Situ Alloyed with 3 wt% Cr by Laser Powder Bed Fusion
- 2024Advancements in metal additive manufacturingcitations
- 2024Designing and Simulating an additive manufacturable liquid metal heat pipe for future fusion applicationcitations
- 2023Enhancing equiaxed grain formation in a high-alloy tool steel using dual laser powder bed fusioncitations
- 2023Molybdenum alloy Mo-Ti-Zr-C adapted for laser powder bed fusion with refined isotropic microstructure and excellent high temperature strengthcitations
- 2023Solute-induced grain refinement and defect suppression in boron-modified molybdenum manufactured via laser powder-bed fusioncitations
- 2023Microstructural evolution and mechanical properties of Ti-6Al-4V in situ alloyed with 3.5 wt.% Cu by laser powder bed fusioncitations
- 2023Microstructure of a modulated Ti-6Al-4V – Cu alloy fabricated via in situ alloying in laser powder bed fusioncitations
- 2023Systematic approach to process parameter optimization for laser powder bed fusion of low-alloy steel based on melting modescitations
- 2023Evolutionary Optimized 3D WiFi Antennas Manufactured via Laser Powder Bed Fusioncitations
- 2023Deformation and fatigue behaviour of additively manufactured Scalmalloy® with bimodal microstructurecitations
- 2022Dependence of mechanical properties and microstructure on solidification onset temperature for Al2024–CaB<sub>6</sub> alloys processed using laser powder bed fusioncitations
- 2022An improved process scan strategy to obtain high-performance fatigue properties for Scalmalloy®citations
- 2022Unique microstructure evolution of a novel Ti-modified Al-Cu alloy processed using laser powder bed fusioncitations
- 2022Crack-free in situ heat-treated high-alloy tool steel processed via laser powder bed fusion: microstructure and mechanical propertiescitations
- 2022Grain refinement mechanisms of alloying molybdenum with carbon manufactured by laser powder bed fusioncitations
- 2021Microstructure and mechanical properties of a TiB<sub>2</sub>-modified Al–Cu alloy processed by laser powder-bed fusioncitations
- 2021Feasibility of grain refinement by heterogeneous nucleation in molybdenum processed via Laser Powder Bed Fusion
- 2020The effect of oxygen and carbon on molybdenum in Laser Powder Bed Fusion
- 2020Vacuum laser powder bed fusion—track consolidation, powder denudation, and future potentialcitations
- 2020Microstructure and mechanical properties of molybdenum-titanium-zirconium-carbon alloy TZM processed via laser powder-bed fusioncitations
- 2020On the Role of Process Pressure in Laser Powder Bed Fusion: Mechanisms and Effects
- 2020On the role of carbon in molybdenum manufactured by Laser Powder Bed Fusioncitations
- 2019Additive manufacturing of pore and crack free molybdenum and tungsten by selective laser melting
- 2019Molybdenum and tungsten manufactured by selective laser melting: Analysis of defect structure and solidification mechanismscitations
- 2019Fully dense and crack free molybdenum manufactured by Selective Laser Melting through alloying with carboncitations
- 2016Effect of Different Bearing Ratios on the Friction between Ultrahigh Molecular Weight Polyethylene Ski Bases and Snowcitations
- 2016Effect of Repairing and Grinding Scratched Alpine Skis on Their Friction on Snowcitations
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article
Microstructure and Mechanical Properties of Ti-6Al-4V In Situ Alloyed with 3 wt% Cr by Laser Powder Bed Fusion
Abstract
This work studied the microstructure and mechanical properties of Ti-6Al-4V in situ<br/>alloyed with 3 wt% Cr by laser powder bed fusion (LPBF). Specimens with a relative density of<br/>99.14 ± 0.11% were produced, showing keyhole and lack of fusion pores. Due to incomplete mixing<br/>of the components during melting, chemical inhomogeneities were observed in the solidified material.<br/>The addition of Cr promoted thermal supercooling during solidification and induced a reduction in<br/>the primary β grain size in the longitudinal direction and a weakening of the otherwise strong ⟨100⟩β<br/>texture, both typical issues for Ti-6Al-4V produced by LPBF. The primary β at first transformed<br/>martensitically to α’, but by preheating the substrate plate to 500 ◦C and cyclically reheating the<br/>material by melting subsequent layers, in situ martensite decomposition was achieved, resulting<br/>in a fine lamellar α + β microstructure. In addition, the B19 phase was detected in the β matrix,<br/>presumably caused by Fe impurities in the Cr powder feedstock. Specimens exhibited a hardness of<br/>402 ± 18 HV10, and an excellent ultimate tensile strength of 1450 ± 22 MPa at an elongation at break<br/>of 4.5 ± 0.2%.