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Pseudoelastic fatigue of NiTi wires: frequency and size effects on damping capacity
The damping properties associated with hysteretic behavior of the pseudoelastic stress–strain (σ–e) curves of NiTi shape memory alloy (SMA) wires were studied. Damping was characterized for wires ofExpand
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Pseudoelastic fatigue of CuZnAl single crystals: the effect of concomitant diffusional processes
Abstract Experiments have been performed in CuZnAl single crystals in order to further understand the evolution of material properties after continuous pseudoelastic cycling. In a fatigueExpand
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Built in dampers for family homes via SMA: An ANSYS computation scheme based on mesoscopic and microscopic experimental analyses
Abstract Shape memory alloys (SMA) are good candidates for solid state dampers because of their large recoverable strain and hysteresis. In this work, experimental analysis and modeling of theExpand
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METASTABLE EFFECTS ON MARTENSITIC TRANSFORMATION IN SMA Part 4. Thermomechanical properties of CuAlBe and NiTi observations for dampers in family houses
The behavior of shape memory alloys (SMA) allows their use as a passive smart material. In particular, the existence of a hysteretic cycle in the domain of the elementary coordinatesExpand
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Shape memory alloys: From the physical properties of metastable phase transitions to dampers for civil engineering applications
The physical properties of Shape Memory Alloys (SMA), useful in damping effects of scarce events as quakes, are studied for Cu-based alloys (CuAlBe) and partially for NiTi in the appropriate timeExpand
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Plasticity in β phase Cu-Zn-Al alloys
Abstract The β Cu-Zn-Al alloys undergo pseudo-elastic martensitic transformations or plastic deformations under an applied stress depending on the temperature and alloy composition. It is ofExpand
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Shape memory in Cu-based alloys: phenomenological behavior at the mesoscale level and interaction of martensitic transformation with structural defects in Cu-Zn-Al
The martensitic transformation in copper-based alloys is thermoelastic, that is, the transformation progresses following the undercooling below the equilibrium temperature. In addition, a hysteresisExpand
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Embedded Rh(1wt %)@Al2O3: Effects of high temperature and prolonged aging under methane partial oxidation conditions
Abstract A simple and efficient synthetic procedure for the production of catalysts stable at high temperature was investigated. Methane partial oxidation was studied over a Rh(1 wt.%)@Al 2 O 3Expand
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Metastable effects on martensitic transformation in SMA
The efficiency of shape memory alloy (SMA) as damper and/or standard actuator is truly enhanced when the material can be cycled without any relevant accumulation of the permanent deformation (i.e.Expand
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Martensitic transformation in Cu-Mn-Al alloys
The Cu-Mn-Al alloys exhibit, in a certain range of composition, an A2 (BCC) phase which is stable at high temperatures (around 1,050 K). Two ordering reactions take place on lowering the temperatureExpand
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