Shape memory
Shape Memory Alloys
... Shape memory alloys (SMAs) are metals that "remember" their original ..."change shape, stiffness, position, natural frequency, and other mechanical characteristics in response to ...
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Gas Tungsten Arc Welding of Cu-Al-Mn Shape Memory Alloys
... Due to their lower production costs when compared to NiTi alloys, Cu-based shape memory alloys are being considered as substitutes for NiTi in energy-absorption devices [12,23–25]. In the present study a ...
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Shape Memory Alloy Actuator forBio-medical application
... of shape memory alloys in medical devices are self- expanding stents, used to brace the inside circumference of a tubular passage such as an esophagus, bile duct, or blood vessel (see fig ...the ...
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Model Equations of Shape Memory Effect - Nitinol
... Shape memory effect (SME) can be observed to a limited number of alloys, being characterized by recovery of original shape on heating above certain tem perature after significant deformation (up to ...
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Shape memory chitosan-based scaffolds for biomedical applications
... a shape memory effect triggered by hydration. The shape memory effect of non-crosslinked (CHT0) and genipin-crosslinked (CHT1) scaffolds was followed by hydromechanical compressive test and ...
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Releasing systems for aerospace industry based upon Shape Memory Alloys: characterization of materials for actuators
... Releasing and deployment maneuvers carried out during space satellites launching are usually performed by utilizing pyrotechnics loads. However, it is considered convenient to replace this technique by others not ...
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Shape Memory Alloys (Part II): Classification, Production and Application
... show shape memory effect (NiTi-based alloys, Cu-based alloys, Fe-based alloys ...greater shape memory strain and excellent corrosion resistance compared to Cu – based ...CuAlNi shape ...
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Gas Tungsten Arc Welding of NiTi Shape Memory Alloy
... Shape memory alloys (SMA) are known for the capacity to recover the initial shape after being deformed, when subjected to a specific thermal cycle, called Shape Memory Effect ...
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Investigation of the bainitic reaction in a CuAlNiMnFe shape memory alloy
... Despite their favorable properties, brittle nature of the CuAlNi shape memory alloys limits their suitability. To increase their ductility, Mn and Fe were added to the base CuAlNi alloy. To reveal the ...
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Thermoinduced plastic flow and shape memory effects
... (shape memory) effects would be natural consequences derived just from well-known facts concerning temperature-dependent yielding behaviour of elastoplastic materials, namely, the yield stress is ...
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Microstructural Characterization of a Laser Surface Remelted Cu-Based Shape Memory Alloy
... Cu-based shape memory alloys (SMAs) present some advantages as higher transformation temperatures, lower costs and are easier to process than traditional Ti-based SMAs but they also show some disadvantages ...
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Effect of Contact Temperature Rise During Sliding on the Wear Resistance of TiNi Shape Memory Alloys
... Titanium‐Nickel TiNi alloys are widely known for their shape memory effect and pseudoelasticity. These effects are due to the fact that these alloys can exist in two different temperature‐dependent crystal ...
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Impact of Alloy Composition and Thermal Stabilization on Martensitic Phase Transformation Structures in CuAlMn Shape Memory Alloys
... Shape memory alloys exhibit high damping properties mainly due to thermoelastic martensitic phase transformations, which are related to the energy loss by the movement of the parental martensite planes, ...
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VIBRATION CONTROL WITH SHAPE-MEMORY ALLOYS
... The other manifestation of the thermoelastic martensitic transformation in SMAs is the so called shape-memory effect. Whereas stressed induced martensite consists of a single preferential variant according ...
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Laser Welding of Shape Memory Alloys
... The shape memory effect of the laser welded NiTi butt joints was assessed by means of bending ...the shape memory effect bending tests is depicted in Figure ...
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Medical applications of shape memory alloys
... Self-expanding stents, named after the dentist C.T. Stent, are another important car- diovascular application that is used to main- tain the inner diameter of a blood vessel. Actually, these devices are used in several ...
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Soldag. insp. vol.18 número3
... Dissimilar joining of shape memory alloys to Ti alloys has long been attempted by several research groups due to the foreseen potential industrial applications. However, the very dissimilar thermo-physical ...
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J. Braz. Chem. Soc. vol.16 número3B
... the Shape Memory Synthesis method was very successfully used as support material for the NiS 2 - based active phase for the trickle-bed oxidation of H 2 S into elemental sulfur at 60 ...
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Aplicação de têxteis inteligentes a produtos de design de moda
... Através do estudo dos materiais inteligentes existentes no mercado e as suas aplicações aos produtos de moda, foi possível a verificação da oportunidade de aplicação dos shape memory [r] ...
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