scholarly journals Transmission Electron Microscopy of Twins in 10M Martensite in Ni–Mn–Ga Ferromagnetic Shape Memory Alloy

2012 ◽  
Vol 53 (5) ◽  
pp. 902-906 ◽  
Author(s):  
Mitsuhiro Matsuda ◽  
Yoshihiro Yasumoto ◽  
Kimiaki Hashimoto ◽  
Toru Hara ◽  
Minoru Nishida
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Ferromagnetic Shape Memory Alloy ◽  
Transmission Electron ◽  
Ferromagnetic Shape Memory

Development of Ni-Mn-Ga Based Ferromagnetic Shape Memory Alloy by Rapid Solidification Technique

2008 ◽  
Vol 52 ◽  
pp. 17-27
Author(s):  
Amitava Mitra ◽  
A.K. Panda
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Rapid Solidification ◽  
Melt Spinning ◽  
X Ray Diffraction ◽  
Ferromagnetic Shape Memory Alloy ◽  
Electron Microscopic ◽  
Transmission Electron ◽  
Rapid Solidification Technique ◽  
Ferromagnetic Shape Memory

Rapid solidification route by melt spinning has been adopted for preparation of a Ni52.5Mn24.5Ga23 (at %) ferromagnetic shape memory alloy in the form of ribbons. In the as-spun state, the ribbon revealed a predominant austenitic L21 structure in combination with martensitic feature as observed from x-ray diffraction studies. Transmission electron microscopic (TEM) evaluation showed these features in the form of martensitic plates. At low temperature, martensite to austenite transformation was exhibited by an increase in magnetization during heating cycle. The reverse effect was observed during cooling cycle. Annealing temperature and magnetising field was also found to effect this transformation.

Transmission electron microscopy of twins in martensite in TiPd shape memory alloy

1997 ◽  
Vol 45 (11) ◽  
pp. 4847-4853 ◽  
Author(s):  
M. Nishida ◽  
T. Hara ◽  
Y. Morizono ◽  
A. Ikeya ◽  
H. Kijima ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Transmission Electron

Self-Accommodation Morphology in Ti-Nb-Al Shape Memory Alloy

2010 ◽  
Vol 654-656 ◽  
pp. 2154-2157 ◽  
Author(s):  
Tomonari Inamura ◽  
Hideki Hosoda ◽  
Hiroyasu Kanetaka ◽  
Hee Young Kim ◽  
Shuichi Miyazaki
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Habit Plane ◽  
The Self ◽  
The Other ◽  
Conventional Transmission Electron Microscopy ◽  
Transmission Electron

The self-accommodation microstructure of a -titanium shape memory alloy (SMA) was investigated by conventional transmission electron microscopy (CTEM) observation. There were two distinct minimum units for the self-accommodation microstructure. One was the V-shaped pair of two habit plane variants that were bounded by the {111}TypeI twin as reported in some previous studies. The other was the bundle of the two habit plane variants that were bounded by the <211>TypeII twin. The later one had not been recognized as the self-accommodation microstructure in -titanium SMAs.

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