Experimental Study on Reversibility of Magnetically Controlled Shape Memory Alloy

2010 ◽  
Vol 44-47 ◽  
pp. 3100-3104 ◽  
Author(s):  
Ying Li Ding ◽  
Yong Zhi Cai ◽  
Cheng Wu Lin
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Dynamic Response ◽  
Shape Memory ◽  
High Sensitivity ◽  
Vibration Detection ◽  
Dynamic Reversibility ◽  
The Magnetic Field

This paper reports an experiment equipment which is used as reversibility research of magnetically controlled shape memory alloy (MSMA). The vibration detection is done based on dynamic reversibility of MSMA. The results show that MSMA will induce Martensitic transformation in the magnetic field. The characteristics of rapid dynamic response, high sensitivity and reversibility are found. The material is of a bright future of application in sensors and self-sensing actuator (SSA) field.

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.

High sensitivity on caloric effects induced by stress or magnetic field in a polycrystalline Ni-Mn-In-Co-Cu shape-memory alloy

2019 ◽  
Vol 166 ◽  
pp. 92-95 ◽  
Author(s):  
Juan-Pablo Camarillo-Garcia ◽  
Fernando Hernández-Navarro ◽  
D.E. Soto-Parra ◽  
David Ríos-Jara ◽  
Horacio Flores-Zúñiga
Keyword(s):  
Magnetic Field ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
High Sensitivity

Effect of Constant-Strain Aging on Microstructure, Martensitic Transformation and Magnetic Property of Ni53Mn23.5Ga23.5 Ferromagnetic Shape Memory Alloy

2014 ◽  
Vol 1015 ◽  
pp. 114-118
Author(s):  
G.F. Dong
Keyword(s):  
Magnetic Field ◽  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Curie Temperature ◽  
Shape Memory ◽  
Aged Sample ◽  
Ferromagnetic Shape Memory Alloy ◽  
Solution Treated ◽  
Treated Sample ◽  
Ferromagnetic Shape Memory

The effect of constant-strain aged and unaged on microstructure, martensite transformation, Curie temperature and magnetic field induction strain of Ni53Mn23.5Ga23.5ferromagnetic shape memory alloy was investigated in detail. The results show that reverse martensitic transformation temperatures of constant-strain aged sample slowly decrease, which martensitic transformation temperatures almost unchanged. In addition, Curie temperature of constant-strain aged sample is almost maintains consistent with solution-treated sample, but slowly increases saturation magnetization of constant-strain aged sample than solution-treated sample. Finally, the sample of constant-strain aged sample showed a larger magnetic field induction strain of 402 ppm.

Magnetic field induced martensitic transformation linked to the arrested austenite in a Ni-Mn-In-Co shape memory alloy

2011 ◽  
Vol 109 (9) ◽  
pp. 093515 ◽  
Author(s):  
J. I. Pérez-Landazábal ◽  
V. Recarte ◽  
V. Sánchez-Alarcos ◽  
C. Gómez-Polo ◽  
S. Kustov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Shape Memory

Martensitic Transformation and Magnetic-Field-Induced Strain in Magnetic Shape Memory Alloy NiMnGa Melt-Spun Ribbon

2005 ◽  
Vol 475-479 ◽  
pp. 2009-2012 ◽  
Author(s):  
Shi Hai Guo ◽  
Yang Huan Zhang ◽  
Bai Yun Quan ◽  
Jian Liang Li ◽  
Xin Lin Wang
Keyword(s):  
Magnetic Field ◽  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Internal Stress ◽  
Melt Spinning ◽  
Martensitic Transformation Temperature ◽  
Magnetic Shape Memory ◽  
Magnetic Shape Memory Alloy ◽  
Melt Spun

A non-stoichiometric polycrystalline Ni50Mn27Ga23 magnetic shape memory alloy was prepared by melt-spinning technology. The effects of melt-spinning on the martensitic transformation and magnetic-field-induced strain (MFIS) of the melt-spun ribbon were investigated. The experimental results show that the melt-spun ribbon undergoes the thermal-elastic martensitic transformation and exhibits the thermo-elastic shape memory effect. But the martensitic transformation temperature decreases and Curie temperature remains unchanged. A particular internal stress induced by melt-spinning made a texture structure in the melt-spun ribbon, which made the melt-spun ribbon obtain larger transition-induced strain and MFIS. The internal stress was released under cycling of magnetic field. This resulted in a decrease of MFIS of the melt-spun ribbon.

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