TiNi shape memory alloy
Superelastic Deformation Behaviors Based on Phase Transformation Bands in TiNi Shape Memory Alloy
... found that the superelastic deformation of the SMA is rather inhomogeneous process; it is started from the grip area and developed to the central part of the specimen. In recent works on superelastic deformation behavior ...
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Residual Stress of TiNi Shape Memory Alloy Thin Films with (111) Single crystal Silicon Wafer
... TiNi shape memory alloy (SMA) thin films are paid more and more attention in the field of micro-electro-mechanical systems (MEMS). 1) Especially the thin films with substrate are utilized in ...
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Effect of Cold Rolled on Microstructure and Mechanical Properties of TiNi Shape Memory Alloy
... The nominal composition of Ni50.2Ti49.8 (atom percent) alloy ingot was prepared using a high frequency induction vacuum furnace, the weight of ingot was about 20 kg.They were then hot forging and hot rolling to ...
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Influence of Strain Ratio on Bending Fatigue Life and Fatigue Crack Growth in TiNi Shape Memory Alloy Thin Wires
... of TiNi shape-memory alloy thin wires and the process of fatigue crack propagation were ...a shape memory wire, resulting in shorter fatigue life of the superelastic ...
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Subloop Deformation Behavior of TiNi Shape Memory Alloy Subjected to Stress Controlled Loadings
... The main characteristics which appear in shape memory alloys (SMAs) are the shape memory effect (SME) and superelasticity (SE). 1–4) Large recovery strain, high recovery stress, large energy ...
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Hot Rolling and Ageing Effect on the Pseudoelasticity Behaviour of Ti Rich TiNi Shape Memory Alloy
... This paper presents the findings of an experimental study of how ageing temperature affects the pseudoelasticity (PE) and its phases of Shape Memory Alloy (SMA). These have been examined by means of ...
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Infrared imaging of TiNi shape memory alloy subjected to deformation at various temperatures
... The SMA heat engine is driven by the sun light using a Fresnel lens. In the SMA heat engine, two pulleys are connected by the SMA belt which is shape-memorized in the flat plane. The car moves based on the ...
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Enhancement of Fatigue Life in TiNi Shape Memory Alloy by Ultrasonic Shot Peening
... The stress-strain curves of four kinds of SMA tapes obtained by the tension test are shown in Fig. 1. All stress- strain curves draw hysteresis loops during loading and unloading, showing the superelasticity. The upper ...
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Effect of Shape Memory Heat Treatment on Microstructures and Mechanical Properties of Powder Metallurgy TiNi Shape Memory Alloy
... the shape memory heat treatment (SMHT, 573 to 773 K of heating temperature, 0 to 240 min of holding time) was finally ...and shape memory characteristics of the above PM TiNi alloys, ...
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Superelastic Deformation of TiNi Shape Memory Alloy Subjected to Various Subloop Loadings
... Shape memory alloys (SMAs) are remarkable materials characterized by the thermomechanical properties of shape memory and ...of shape memory elements, the thermomechanical ...
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Fabrication of TiNi Powder by Mechanical Alloying and Shape Memory Characteristics of the Sintered Alloy
... TiNi shape memory alloy is one of the essential functional materials in the field of smart materials which need functions of a sensor and an actuator because the alloy has a unique ...
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A Study on the Fabrication of TiNi/Al6061 Shape Memory Composite Material by Hot Press Method and its Mechanical Property
... shape memory composite material at room temperature and 363 K are shown and in ...of TiNi shape memory ...of TiNi fiber indicates the range of strain ...that TiNi/Al 6061 ...
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Effect of Low Temperature Aging on Superelastic Behavior in Biocompatible β TiNbSn Alloy
... Recently, shape memory and superelastic behavior have been reported in many Ni-free Ti alloys, such as Ti-Mo- Al, 1) Ti-Nb-Sn, 2,3) Ti-Mo-Ga, 4) Ti-Nb-Al, 5,6) Ti-Nb 7) and Ti- Nb-Zr-Sn 8) to substitute for ...
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Effect of Al Addition on Superelastic Properties of Aged Ti Nb Zr Al Quaternary Alloys
... referred as 0Al6Al. The ingots were prepared by arc- melting in an Ar atmosphere. Each ingot was melted 8 times. Figure 1 schematically shows the history of heat treatment performed to the arc-melted ingots. Firstly, ...
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Confection and Assessment of a Dynamic Orthotics Using a Nitinol Alloy
... with shape memory are materials that undergo a deformation after, have the ability to return to its size and shape when subjected to an appropriate heat ...nickel-titanium alloy (NiTi) that ...
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The Effect of Shape Memory Alloy in Composite Beam
... of shape memory alloy using finite element analysis on ansys ...the shape memory alloy wire is used at the top surface above the neutral axis of the carbon/epoxy ...The ...
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Enhanced Mechanical Properties of Fe Mn Si Cr Shape Memory Fiber/Plaster Smart Composite
... Figure 10 shows applied load-displacement curves mea- sured during SMA fiber pull-out test. The maximum values of fiber pull-out load increases with increases in the amount of pretensile strain. At the same time, ...
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Characterization and Predictive Output Behavior of Shape Memory Alloy
... The proposed work carefully examine the difficulties faced by the engineers in order to sort out various constitutive equations defined by the different scientists across the globe in computing and modelling of ...
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Experimental study on two way shape memory effect training procedure for NiTiNOL shape memory alloy
... One of effective methods of obtaining TWSME characteristics was reported by [11] where bending mechanisms were used instead of using mechanical tests (under constant stress). This technique is used to avoid shape ...
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Properties of Thermally Treated CuZn27Al3 Shape Memory Alloy
... The process of testing the pseudo-elastic effect is similar to tensile testing, but the loading is stopped before fracture occurs, at the end of the deformation range characteristic for the shape memory. ...
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