| 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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Gloc, Michał
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023Research on Explosive Hardening of Titanium Grade 2citations
- 2023Comprehensive study upon physicochemical properties of bio-ZnO NCscitations
- 2023Residual stresses of explosively welded bimetal studied by hard X-ray diffractioncitations
- 2023Consideration of a new approach to clarify the mechanism formation of AgNPs, AgNCl and AgNPs@AgNCl synthesized by biological methodcitations
- 2023A Comprehensive Study of a Novel Explosively Hardened Pure Titanium Alloy for Medical Applications
- 2022In situ alloying of NiTi: Influence of laser powder bed fusion (LBPF) scanning strategy on chemical compositioncitations
- 2021Methodological Aspects of Obtaining and Characterizing Composites Based on Biogenic Diatomaceous Silica and Epoxy Resinscitations
- 2021Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose Fillercitations
- 2021Al2O3/ZrO2 Materials as an Environmentally Friendly Solution for Linear Infrastructure Applicationscitations
- 2021A New Method of Diatomaceous Earth Fractionation—A Bio-Raw Material Source for Epoxy-Based Compositescitations
- 2020New Al2O3–Cu–Ni functionally graded composites manufactured using the centrifugal slip castingcitations
- 2020Controlling the Porosity and Biocidal Properties of the Chitosan-Hyaluronate Matrix Hydrogel Nanocomposites by the Addition of 2D Ti3C2Tx MXenecitations
- 2019The influence of degree of fragmentation of Pinus sibirica on flammability, thermal and thermomechanical behavior of the epoxy-compositescitations
- 2019Analysis of the microstructure of an AZ31/AA1050/AA2519 laminate produced using the explosive-welding methodcitations
- 2017The Effect of Heat Treatment on the Microstructure and Properties of Explosively Welded Titanium-Steel Platescitations
- 2017Accumulation and mechanism of the fatigue damage for a nickel based superalloy
- 2016Natural fiber composites: the effect of the kind and content of filler on the dimensional and fire stability of polyolefin-based compositescitations
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article
In situ alloying of NiTi: Influence of laser powder bed fusion (LBPF) scanning strategy on chemical composition
Abstract
NiTi alloys are widely used in different industrial and medical applications. Due to the inherent difficulty in themachining of these alloys, the use of Additive Manufacturing (AM) methods has become a popular method fortheir production. When working with NiTi alloys, there is a requirement on the precise control of their chemicalcomposition, as this determines the phase transition temperatures which are responsible for their shape memoryor superelastic behaviour. The high energies used in AM to melt the NiTi alloy leads to nickel evaporation,resulting in a chemical change between the batch powder and the additively manufactured part. Therefore, inAM techniques applied to different NiTi alloys, understanding the relationship between the melting strategy andnickel evaporation is crucial during the developing the desired chemical composition of the final-fabricatedmaterial. In this study, three NiTi alloys were fabricated using laser powder bed fusion (LPBF) starting fromelementally blended Ni and Ti powders. Different melting strategies, including single and multiple melting, werestudied in this work. Remelting improved the density and reduced cracking of the AM part. Microscopic observations,using a Scanning Electron Microscope (SEM) with a Backscattered Electron (BSE) detector, showedthat the chemical homogeneity of the materials was enhanced by multiple remelting. Pure Ni and Ti were notfound in any of the samples, proving that the applied melting strategies ensured good alloying of both powders.Regardless of the number of melting runs, X-ray diffraction (XRD) analysis showed the presence of NiTi (B2) and(B19′ ) phases, as well as NiTi2, Ni4Ti3 and Ni3Ti precipitates in all samples. The research demonstrated that,during the AM process, and depending on the melting strategy, 1.6–3.0 wt% of nickel evaporates from thematerial. It was demonstrated that the amount of evaporated nickel increased with the increasing number of meltcycles.