Real-space phase field investigation of evolving magnetic domains and twin structures in a ferromagnetic shape memory alloy

2016 ◽  
Vol 120 (18) ◽  
pp. 183904 ◽  
Author(s):  
H. H. Wu ◽  
A. Pramanick ◽  
Y. B. Ke ◽  
X.-L. Wang
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Phase Field ◽  
Field Investigation ◽  
Real Space ◽  
Magnetic Domains ◽  
Ferromagnetic Shape Memory Alloy ◽  
Ferromagnetic Shape Memory ◽  
Space Phase

scholarly journals Observations of Magnetic Domains in a Ni51Fe22Ga27 Ferromagnetic Shape Memory Alloy by Electron Holography

Materia Japan ◽  
2003 ◽  
Vol 42 (12) ◽  
pp. 874-874
Author(s):  
Yasukazu Murakami ◽  
Daisuke Shindo ◽  
Katsunari Oikawa ◽  
Ryosuke Kainuma ◽  
Kiyohito Ishida
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Electron Holography ◽  
Magnetic Domains ◽  
Ferromagnetic Shape Memory Alloy ◽  
Ferromagnetic Shape Memory

scholarly journals Correspondence between Magnetic Domains and Twins in Martensite Phase in Ferromagnetic Shape Memory Alloy

Materia Japan ◽  
2004 ◽  
Vol 43 (12) ◽  
pp. 999-999
Author(s):  
Koichi Tsuchiya ◽  
Kazuo Yamamoto ◽  
Tsukasa Hirayama ◽  
Minoru Umemoto
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Martensite Phase ◽  
Magnetic Domains ◽  
Ferromagnetic Shape Memory Alloy ◽  
Ferromagnetic Shape Memory

Transformation Behavior of Ni-Mn-Ga Ferromagnetic Shape Memory Alloy

2008 ◽  
Vol 52 ◽  
pp. 121-128 ◽  
Author(s):  
K. Pushpanathan ◽  
R. Senthur Pandi ◽  
R. Chokkalingam ◽  
Manickam Mahendran
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Martensite Plate ◽  
Ferromagnetic Transition ◽  
Magnetic Domains ◽  
Ferromagnetic Shape Memory Alloy ◽  
Scanning Calorimetry ◽  
Casting Technique ◽  
Different Temperatures ◽  
Ferromagnetic Shape Memory

Ni-Mn-Ga Ferromagnetic Shape Memory Alloy (FSMA) has been prepared by melt casting technique. The alloy was annealed at different temperatures. The samples are characterized in prepared condition and after three different annealing treatments. Microstructure of the alloy has been investigated using SEM at room temperature. Microstructure study reveals that the magnetic domains run diagonally across the surface. Differential Scanning Calorimetry (DSC) result shows the ferromagnetic transition temperature of the alloy is 105°C. In-situ study of structure during heating has revealed that the martensite to austenite transformation takes place in the temperature range of 28°C to 36°C. The present study focuses the effect of annealing on phase transformation and magnetic transformation temperature of Ni-Mn-Ga alloy. It has been observed that the thickness of the martensite plate increases as the alloy is annealed at 950°C for 30 hrs.

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