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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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Mcmeeking, Robert
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Publications (3/3 displayed)
- 2024Interaction of defects, martensitic transformation and slip in metastable body centred cubic crystals of Ti-10V-2Fe-3Al : A study via crystal plasticity finite element methods (CPFEM)
- 2022A Multiscale Constitutive Model for Metal Forming of Dual Phase Titanium Alloys by Incorporating Inherent Deformation and Failure Mechanismscitations
- 2021Computational Modelling of Microstructural Deformation in Metastable β Titanium Alloys
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document
Computational Modelling of Microstructural Deformation in Metastable β Titanium Alloys
Abstract
Metal forming is a manufacturing process in which a solid body is converted from an initial shape to a new one through mechanical deformation. Forming processes generally involve significant plastic deformation under complex multi-axial loading conditions. It is well known that metals can plastically deform via number of mechanisms: dislocation slip, twinning, the formation of stress/strain-induced martensite, or a combination of these. The interplay between the different deformation mechanisms significantly affects the mechanical behaviour of the metal.<br/>Martensitic transformation can be regarded as a mode of deformation; one which causes a change in the crystalline structure. Martensite transformation is usually triggered by heat treatment when the parent phase passes through the transformation temperature (MS) and the driving force equals a critical value. The application of an externally applied stress can also trigger transformation, this is termed stress/strain-induced martensite (SIM). This type of martensitic transformation results in a more ordered microstructure. A microstructure generated by favouring the formation of martensite aligned with the applied loading. The exact deformation mechanisms for SIM; influence of different alloying elements; microstructural evolution; and the interaction between SIM, elastic/plastic deformation, and failure of the material is not fully understood and is still an active area of research [1]–[4].<br/>In this study, a new CP-FEM formulation including SIM transformation along with conventional slip based plastic deformation is presented. The model is intended to investigate the interaction of SIM, slip-based plasticity, damage nucleation and growth in metastable 𝛽 titanium alloys. Providing insights into the influence SIM has on the bulk material response and microstructural evolution of metastable 𝛽 titanium alloys during metal forming processes.