| 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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Teresa Vieira, Mt
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Topics
Publications (4/4 displayed)
- 2016Microstructural Characterization of Diffusion Bonds Assisted by Ni/Ti Nanolayerscitations
- 2013Reaction zone formed during diffusion bonding of TiNi to Ti6Al4V using Ni/Ti nanolayerscitations
- 2012Microstructure of Reaction Zone Formed During Diffusion Bonding of TiAl with Ni/Al Multilayercitations
- 2011Diffusion bonding of TiAl using reactive Ni/Al nanolayers and Ti and Ni foilscitations
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article
Diffusion bonding of TiAl using reactive Ni/Al nanolayers and Ti and Ni foils
Abstract
The diffusion bonding of TiAl using reactive Ni/Al multilayer thin films with Ti and Ni foils was investigated. Bonding experiments were performed at 800 and 900 degrees C, at a pressure of 5 MPa and for bonding times of 30 and 60 min. The bonding surfaces were modified by sputtering, by deposition of Ni and Al nanolayers to increase the diffusivity at the interface, and Ti and Ni foils were used to fill the bond gap. The microstructure and chemical composition of the interfaces were investigated by scanning electron microscopy, electron backscattered diffraction and by energy dispersive X-ray spectroscopy. Sound joints were obtained with a combination of reactive multilayer thin films and Ti and Ni thin foils. Several AlNiTi intermetallic compounds were formed in the interface region. The mechanical properties of the joints were evaluated by nanoindentation and shear strength tests. Using foils in-between the nanocrystalline multilayers, which would be a useful method for correcting the absence of flatness of the parts to be joined, has drawbacks as it induces the formation of hard, brittle intermetallic compounds, responsible for the low shear strength of the joints.