scholarly journals Experimental Study and Modeling of the Fatigue Fracture of High-Strength FeMnSi-based Shape Memory Alloy

2020 ◽  
Vol 28 ◽  
pp. 2110-2117
Author(s):  
Fedor S. Belyaev ◽  
Margarita E. Evard ◽  
Eugeny S. Ostropiko ◽  
Aleksandr E. Volkov
Keyword(s):  
Experimental Study ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Fatigue Fracture ◽  
High Strength

scholarly journals Experimental study of a new sutureless intraluminal graft with a shape-memory alloy ring

1994 ◽  
Vol 107 (1) ◽  
pp. 191-195 ◽  
Author(s):  
Chuanrui Yang ◽  
Yanqing Sun ◽  
Peiqing Dong ◽  
Huazhong Wang
Keyword(s):  
Experimental Study ◽  
Shape Memory Alloy ◽  
Shape Memory

Experimental Study on Temperature External-Characteristics of Ni-Mn-Ga Shape Memory Alloy

2011 ◽  
Vol 311-313 ◽  
pp. 1232-1236 ◽  
Author(s):  
Yong Zhi Cai
Keyword(s):  
Experimental Study ◽  
Critical Temperature ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Temperature Effect ◽  
Deformation Rate ◽  
Variable Temperature ◽  
Temperature Characteristics ◽  
The Relationship ◽  
External Characteristics

Temperature characteristics are essential to reasonable application of Ni-Mn-Ga alloy. This paper reports an experiment equipment which is used as the research of variable temperature effect. The relationship between deformation rate and temperature is studied. Dynamic and static experiments are done. The results show that critical temperature is around 40°C. It can be predicted that thermo-elasticity and magnetically-controlled characteristics will disappear with the increase of temperature.

Experimental Study on the Magnetic Characteristics of Magnetic Shape Memory Alloy Materials

2013 ◽  
Vol 446-447 ◽  
pp. 230-234
Author(s):  
Tao Li ◽  
She Liang Wang ◽  
Tao Yang ◽  
Guang Yuan Weng
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Constitutive Relations ◽  
Memory Function ◽  
Magnetic Characteristics ◽  
Magnetic Shape Memory ◽  
Magnetic Shape Memory Alloy ◽  
Magnetic Induction Intensity

With shape memory function of new smart material, the magnetic control properties of magnetic shape memory alloy could be used to fabricate intelligent actuators for vibration control of structures. In order to study its magnetic properties, this text selected Ni53Mn25Ga22 as the material for the research and development of actuator drive, And two MSMA test specimens were prepared for the experimental study under the coupled action of the temperature, preload pressure and magnetic field. The results showed that the strain of MSMA induced by magnetic field decreased with the increase of the preload pressure at constant magnetic field. The deformation performance was best when the magnetic induction intensity was about 0.5T. And the constitutive relations were fitted for the actuator production to lay the foundation for later.

Experimental Study of Tungsten Inert Gas Pulsed Welding Applied to Ni-Ti Shape Memory Alloy Wires

2015 ◽  
Vol 1765 ◽  
pp. 153-158 ◽  
Author(s):  
Luiz F.A. Rodrigues ◽  
Fernando A. Amorim ◽  
Francisco F.R. Pereira ◽  
Carlos J. de Araújo
Keyword(s):  
Experimental Study ◽  
Shape Memory Alloy ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Welding Process ◽  
Functional Materials ◽  
Inert Gas ◽  
Scanning Calorimetry ◽  
Dissimilar Joints ◽  
Mechanical Cycling

ABSTRACTShape memory alloys are functional materials that can recover plastic strains between 2 and 6%. This property can be used to produce actuators for many areas as medicine, robotic, aeronautic and others. Recently, it has been observed the particular interest for shape memory alloys welding, especially to obtain Ni-Ti similar and dissimilar joints and fabricate simple or complex structures. In this sense, this work present an experimental study of tungsten inert gas pulsed welding applied to Ni-Ti shape memory alloy wires with 0.9 mm in diameter, previously heat treated at 450 °C for 20 minutes and air cooled. For that, it was carried out tensile tests at isothermal temperatures from 40 °C to 90 °C (steps of 10 °C) for welded and unwelded wires. The transformation temperatures obtained from differential scanning calorimetry were compared to verify the effect of welding process. It was also performed a stabilization process by mechanical cycling in some welded and unwelded Ni-Ti wires. The results showed a low strength and strain capacity of the weld joint at higher temperatures. Although, at lowest temperature, close to 40 °C, it was observed higher values of maximum stress and strain for welded Ni-Ti wires.

Experimental study of a bio-inspired robotic morphing wing mechanism actuated by shape memory alloy wires

Mechatronics ◽  
2014 ◽  
Vol 24 (8) ◽  
pp. 1231-1241 ◽  
Author(s):  
Hamid Basaeri ◽  
Aghil Yousefi-Koma ◽  
Mohammad Reza Zakerzadeh ◽  
Seyed Saeid Mohtasebi
Keyword(s):  
Experimental Study ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Morphing Wing
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