Crystal structures and textures in the hot-forged Ni-Mn-Ga shape memory alloys

2006 ◽  
Vol 37 (5) ◽  
pp. 1397-1403 ◽  
Author(s):  
D. Y. Cong ◽  
Y. D. Wang ◽  
X. Zhao ◽  
L. Zuo ◽  
R. Lin Peng ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Crystal Structures

CuZr Based Shape Memory Alloys: Effect of Cr and Co on the Martensitic Transformation

2013 ◽  
Vol 738-739 ◽  
pp. 167-171 ◽  
Author(s):  
Carlo Alberto Biffi ◽  
Alessandro Figini Albisetti ◽  
Ausonio Tuissi
Keyword(s):  
Thermal Stability ◽  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Diffraction Analysis ◽  
Shape Memory ◽  
Crystal Structures ◽  
Thermal Hysteresis ◽  
X Rays ◽  
Characteristic Temperatures ◽  
Scanning Electron

In the present work an investigation on CuZr based shape memory alloys was proposed. In particular, this study has been addressed the effect of the addition of Cr and Co on the martensitic transformation behaviour. The characterization was performed using DSC in terms of evolution of characteristic temperatures. The analysis of the proposed alloys was completed with the evaluation of the microhardness and the microstructure, observed by means of a scanning electron. Moreover, X-rays diffraction analysis was also carried out to check the crystal structures in the different alloys. It was shown how the addition of Co can improve thermal stability and the thermal hysteresis of the martensitic transformation by the first thermal cycles, even if the characteristic temperatures were significantly decreased.

TiNi-Base and Ti-Base Shape Memory Alloys

2007 ◽  
Vol 561-565 ◽  
pp. 5-21 ◽  
Author(s):  
Shuichi Miyazaki ◽  
Hee Young Kim
Keyword(s):  
Thin Films ◽  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Crystal Structures ◽  
Deformation Behavior ◽  
Orientation Dependence ◽  
Recoverable Strain ◽  
Basic Characteristics ◽  
Sputter Deposited

The basic characteristics of TiNi-based and Ni-free Ti-based shape memory alloys are reviewed. They include the crystal structures of the parent and martensite phases in both the alloys, the recoverable strain associated with the martensitic transformation, the transformation temperatures, the temperature and orientation dependence of deformation behavior, etc. The sputter-deposited Ti-Ni thin films are also reviewed briefly because of their possibility of expanding into micromechanical system applications as the most powerful microactuator.

Atomic Order and Martensitic Transformation in Cu-Al-Be Shape Memory Alloys

1995 ◽  
Vol 05 (C8) ◽  
pp. C8-973-C8-978
Author(s):  
M. Jurado ◽  
Ll. Mañosa ◽  
A. González-Comas ◽  
C. Stassis ◽  
A. Planes
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Atomic Order
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