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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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| 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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Gebelin, Jean-Christophe
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2015Validation of a Model of Linear Friction Welding of Ti6Al4V by Considering Welds of Different Sizescitations
- 2012The effect of hydrogen on porosity formation during electron beam welding of titanium alloys
- 2012On the mechanism of porosity formation during welding of titanium alloyscitations
- 2012Hydrogen Transport and Rationalization of Porosity Formation during Welding of Titanium Alloyscitations
- 2012Coupled thermodynamic/kinetic model for hydrogen transport during electron beam welding of titanium alloycitations
- 2011Linear friction welding of Ti-6Al-4V: Modelling and validationcitations
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article
Coupled thermodynamic/kinetic model for hydrogen transport during electron beam welding of titanium alloy
Abstract
Hydrogen transport during the welding of titanium alloy Ti-6Al-4V is analysed. A coupled thermodynamic/kinetic treatment is proposed in which the driving force for hydrogen migration is its chemical potential gradient, which is in turn calculated using the Thermo-Calc software package. The model is applied to the case of the electron beam welding of Ti-6Al-4V, for which a simple process model is presented for the temperature evolution expected. There is a thermodynamic driving force for accumulation of hydrogen in the weld pool. However, agreement with the limited amount of experimental data in the literature for the hydrogen field caused by welding indicates that account needs to be taken of the hydrogen degassing from the weld pool.