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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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Mahesh, Karimbi Koosappa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2013In situ structural characterization of laser welded NiTi shape memory alloyscitations
- 2013Simultaneous probing of phase transformations in Ni-Ti thin film Shape Memory Alloy by synchrotron radiation-based X-ray diffraction and Electrical Resistivitycitations
- 2012In situ study of thermomechanical cycling of shape memory alloys
- 2012Textural Evolution Evaluated by EBSD and XRD after Thermal Treatment in Ni-Ti Shape Memory Alloy
- 2011Concurrent Effect of Melt-spinning and Severe Plastic Deformation on Shape Memory Alloy Ribbons by Simultaneous XRD and Electrical Resistivity Measurements
- 2011Combined in-situ XRD and Electrical Resistivity Study of the Phase Transformations in Ni-Ti SMA
- 2011Stability in Phase Transformation After Multiple Steps of Marforming in Ti-Rich Ni-Ti Shape Memory Alloycitations
- 2011Simultaneous XRD and Electrical Resistivity Measurements of the phase transitions in Co-Ni-Ga ferromagnetic shape memory alloy system
- 2010Phase Transformation in Ni-Ti Shape Memory and Superelastic Alloys Subjected to High Pressure Torsion
- 2010XRD study of the transformation characteristics of severely plastic deformed Ni-Ti SMAscitations
- 2010Textural Modifications during Recovery in Ti-Rich Ni-Ti Shape Memory Alloy Subjected to Low Level of Cold Work Reduction
- 2010Phase transformation and structural study on the severely plastic deformed Ni-Ti alloyscitations
- 2009In-situ XRD and Electrical Resistivity Study of the Phase transformations in Ni-Ti Shape Memory Alloys (SMA)
- 2008Electric resistance variation of NiTi shape memory alloy wires in thermomechanical tests: Experiments and simulationcitations
- 2008The interfacial diffusion zone in magnetron sputtered Ni-Ti thin films deposited on different Si substrates studied by HR-TEMcitations
- 2008Thermomechanical behavior of Ti-rich NiTi shape memory alloyscitations
- 2007In-situ study of Ni-Ti thin film growth on a TiN intermediate layer by X-ray diffractioncitations
- 2007X-ray diffraction study of the phase transformations in NiTi shape memory alloycitations
- 2006One- and two-step phase transformation in Ti-rich NiTi shape memory alloy
- 2006Kinetics characterization of martensitic transformation on Ti-rich Ni-Ti SMA
- 2006Texture evolution during annealing of Ni-Ti shape memory alloy
- 2006Study of the textural evolution in Ti-rich NiTi using synchrotron radiationcitations
Places of action
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report
In-situ XRD and Electrical Resistivity Study of the Phase transformations in Ni-Ti Shape Memory Alloys (SMA)
Abstract
In situ XRD has been used by the authors to study the structural changes during (i) the crystallization of Ni-Ti thin films [1], (ii) the growth of Ni-Ti thin films by sputtering [2-11], and (ii) the transformation characteristics of bulk N-Ti subject to thermomechanical treatments [12-16]. The phase transformations of Ni- Ti SMA can also be investigated by measuring some physical properties such as electrical resistivity (ER) as a function of temperature. During cooling of Ni-Ti SMA from B2-phase, the resistivity value decreases linearly with the temperature down to Rs , where R-phase self-accommodated (by twinning) starts to be formed. Twinning in an alloy matrix results in electron scattering, which in turn leads to the increase of the ER [17]. Additional cooling below Rf promotes the continuous increase of rhombohedral distortion angle of the R-phase. It is assumed that this rhombohedral distortion is the reason for a further increase of ER (between Rf and Ms). Below Ms, this distortion is relaxed by the R-phase transforming to monoclinic B19' martensite, giving a gradual decrease of ER.