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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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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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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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Santos, Luis
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Publications (6/6 displayed)
- 2018Fracture Toughness of Hybrid Components with Selective Laser Melting 18Ni300 Steel Partscitations
- 2018Mechanical models for local buckling of metal sandwich panelscitations
- 2018High-fidelity non-linear analysis of metal sandwich panelscitations
- 2017Bioglass implant-coating interactions in synthetic physiological fluids with varying degrees of biomimicrycitations
- 2017Design-oriented mechanical models for local buckling assessment of sandwich panels with metal cores
- 2013Bosonization and entanglement spectrum for one-dimensional polar bosons on disordered latticescitations
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article
Fracture Toughness of Hybrid Components with Selective Laser Melting 18Ni300 Steel Parts
Abstract
<jats:p>Selective Laser Melting (SLM) is currently one of the more advanced manufacturing and prototyping processes, allowing the 3D-printing of complex parts through the layer-by-layer deposition of powder materials melted by laser. This work concerns the study of the fracture toughness of maraging AISI 18Ni300 steel implants by SLM built over two different conventional steels, AISI H13 and AISI 420, ranging the scan rate between 200 mm/s and 400 mm/s. The SLM process creates an interface zone between the conventional steel and the laser melted implant in the final form of compact tension (CT) samples, where the hardness is higher than the 3D-printed material but lower than the conventional steel. Both fully 3D-printed series and 3D-printed implants series produced at 200 mm/s of scan rate showed higher fracture toughness than the other series built at 400 mm/s of scan rate due to a lower level of internal defects. An inexpressive variation of fracture toughness was observed between the implanted series with the same parameters. The crack growth path for all samples occurred in the limit of interface/3D-printed material zone and occurred between laser melted layers.</jats:p>