| 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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Spieckermann, Florian
Montanuniversität Leoben
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Semi-analytical and experimental heat input study of additively manufactured Zr-based bulk metallic glasscitations
- 2024Controlling the Glassy State toward Structural and Mechanical Enhancement: Additive Manufacturing of Bulk Metallic Glass Using Advanced Laser Beam Shaping Technologycitations
- 2024Exploring Refinement Characteristics in FeTi‐Cu x Composites: A Study of Localization and Abrasion Constraintscitations
- 2024Mechanical processing and thermal stability of the equiatomic high entropy alloy TiVZrNbHf under vacuum and hydrogen pressurecitations
- 2023Rejuvenation engineering in metallic glasses by complementary stress and structure modulationcitations
- 2023Can Severe Plastic Deformation Tune Nanocrystallization in Fe-Based Metallic Glasses?citations
- 2023Hierarchical Surface Pattern on Ni-Free Ti-Based Bulk Metallic Glass to Control Cell Interactions.
- 2023From unlikely pairings to functional nanocomposites: FeTi–Cu as a model systemcitations
- 2023Toxic element-free Ti-based metallic glass ribbons with precious metal additionscitations
- 2023Controlling the Glassy State toward Structural and Mechanical Enhancement: Additive Manufacturing of Bulk Metallic Glass Using Advanced Laser Beam Shaping Technologycitations
- 2023Hierarchical Surface Pattern on Ni‐Free Ti‐Based Bulk Metallic Glass to Control Cell Interactionscitations
- 2023Short-range order patterns in Mg66Zn29Ca5 metallic glasscitations
- 2022Structure-dynamics relationships in cryogenically deformed bulk metallic glasscitations
- 2022Antibacterial activity, cytocompatibility, and thermomechanical stability of Ti40Zr10Cu36Pd14 bulk metallic glasscitations
- 2022New-generation biocompatible Ti-based metallic glass ribbons for flexible implantscitations
- 2022Magnetron Sputtered Non‐Toxic and Precious Element‐Free TiZrGe Metallic Glass Nanofilms with Enhanced Biocorrosion Resistancecitations
- 2022Maximizing the degree of rejuvenation in metallic glassescitations
- 2022Surmounting the thermal processing limitscitations
- 2021In Situ Synchrotron X‐Ray Diffraction during High‐Pressure Torsion Deformation of Ni and NiTicitations
- 2021Effect of high pressure torsion on crystallization and magnetic properties of Fe$_{73.9}$Cu$_{1}$Nb$_{3}$Si$_{15.5}$B$_{6.6}$citations
- 2021Morphology and properties of foamed high crystallinity PEEK prepared by high temperature thermally induced phase separationcitations
- 2021Transition metal-based high entropy alloy microfiber electrodescitations
- 2021Deformation-Mode-Sensitive Behavior of CuZr-Based Bulk Metallic Glasses Under Dynamic Loadingcitations
- 2021From elastic excitations to macroscopic plasticity in metallic glassescitations
- 2021Effect of high pressure torsion on crystallization and magnetic properties of Fe73.9Cu1Nb3Si15.5B6.6citations
- 2021Transition metal-based high entropy alloy microfiber electrodes: Corrosion behavior and hydrogen activitycitations
- 2020Room temperature recovery of cryogenically deformed aluminium alloyscitations
- 2020Mechanism of low temperature deformation in aluminium alloyscitations
- 2019Characterization of strain bursts in high density polyethylene by means of a novel nano creep testcitations
- 2017Atomic origin for rejuvenation of a Zr-based metallic glass at cryogenic temperaturecitations
- 2017Dislocation Movement Induced by Molecular Relaxations in Isotactic Polypropylenecitations
Places of action
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article
Semi-analytical and experimental heat input study of additively manufactured Zr-based bulk metallic glass
Abstract
Laser powder bed fusion (LPBF) of Zr-based bulk metallic glasses (BMGs) has recently attracted attention due to its capacity for microstructure control, the potential for custom-tailored properties, and its versatile applicability across various industries. It is crucial to strike a balance between relative density, relaxation, and crystallinity tailored to a specific application when 3D printing amorphous components. However, prior findings have not revealed an exclusive study concerning low fractions of crystallinity (<5 vol%) and atomic-scale effects during the LPBF process, e.g. the relaxation degree of the amorphous structure. This study employs a systematic experimental approach, complemented by semi-analytical modeling, to comprehensively recognize the nano- and macro-scale amorphous structure and the associated mechanical behavior. Differential scanning calorimetry (DSC) along with flexural stress-strain measurements disclose that the highest relaxation and crystallization enthalpies, which are obtained for samples printed with lower heat input, are not in correlation with the desired mechanical properties. On the contrary, samples printed with a heat input of ΔH=44 reveal the maximum density range (up to 99.97 %) and showcase laboratory-XRD amorphous structure. This results in the highest flexural strength (up to 2080 MPa) and elastic deformation range (up to 2.6 %), along with the lowest Young's modulus span (60–70 GPa). In this case, the crystallinity (0.02–0.2 vol%) associated with the desired mechanical properties is calculated from the modeling results. The outcomes indicate increased heating/ cooling rates corresponding to the amplified heat input, with cooling rates reaching up to 5×104 °C/s and heating rates up to 6×105 °C/s. However, underlying layers are subjected to reduced heating and cooling rates. This observation not only validates the intricate thermal dynamics in LPBF but also elucidates the crystalline formation in heat-affected zones (HAZs) with associated lower heating and cooling rates.