Two-way shape memory effect and magnetic-field-induced twin boundary motion in Ni-Mn-Ga microwire

2019 ◽  
Vol 243 ◽  
pp. 173-175
Author(s):  
Yangyong Zhao ◽  
Jing Xue ◽  
Yong Zhang ◽  
Maodong Kang ◽  
Haiyan Gao ◽  
...  
2001 ◽  
Vol 291 (2-3) ◽  
pp. 175-183 ◽  
Author(s):  
A.A. Cherechukin ◽  
I.E. Dikshtein ◽  
D.I. Ermakov ◽  
A.V. Glebov ◽  
V.V. Koledov ◽  
...  

2016 ◽  
Vol 111 ◽  
pp. 110-113 ◽  
Author(s):  
A.S. Turabi ◽  
H.E. Karaca ◽  
H. Tobe ◽  
B. Basaran ◽  
Y. Aydogdu ◽  
...  

2010 ◽  
Vol 654-656 ◽  
pp. 2107-2110
Author(s):  
Jun Hyun Han ◽  
Tae Ahn ◽  
Hyun Kim ◽  
Kwang Koo Jee

The shape memory effect (SME) and magnetic shape memory effect (MSME) Fe-Pd thin film are using the film curvature method. The corresponding residual stress change due to theSME and MSME in Fe-Pd film is measuredduring thermal cycling and magnetic field changing. AFe-Pd thin film with a lateral composition gradient is deposited onto micromachined x7 cantilever beam arraysubstrate,such that each of the cantilever beams is coated with a film of different composition.There is abrupt stress change in only .1 at % Pd as the temperature of the film is cycled, and the corresponding stress change was measured as 0.16 GPa. The film with .4 at % Pd showsthe abrupt stress change at 0.7 Tesla, which means that the composition has the MSME.


2012 ◽  
Vol 476-478 ◽  
pp. 1504-1507
Author(s):  
Hai Bo Wang ◽  
Shang Shen Feng ◽  
Pei Yang Cai ◽  
Yan Qiu Huo

The martensitic transformation, crystalline structure, microstructure and shape memory effect of the Ni53.25Mn21.75Ga25 (at.%) alloy are investigated by means of Differential Scanning Calorimetry (DSC), X-ray diffraction (XRD), Transmission Electron Microscope (TEM) and the standard metal strain gauge technique. The XRD results showed that the Ni53.25Mn21.75Ga25 alloy is composed of cubic parent phase at room temperature. TEM observation proved that the typical twin martensite is tetragonal structure and tweed-like contrast which is typical image for the parent phase. A large reversible transformation strain, about 0.54%, is obtained in this undeformed polycrystalline alloy due to martensitic transformation and its reverse transformation. This transformation strain is also increased to 0.65% by the external magnetic field. It is believed that the effect of the magnetic field on the preferential orientation of martensitic variants increases the transformation strain.


2006 ◽  
Vol 47 (3) ◽  
pp. 625-630 ◽  
Author(s):  
Makoto Ohtsuka ◽  
Yuya Konno ◽  
Minoru Matsumoto ◽  
Toshiyuki Takagi ◽  
Kimio Itagaki

2000 ◽  
Vol 12 (1/2) ◽  
pp. 44-45 ◽  
Author(s):  
Hiromasa YABE ◽  
Rie FUJII ◽  
Yoshitake NISHI ◽  
Kazuya OGURI ◽  
Haru-hisa UCHIDA ◽  
...  

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