Microstructure and martensitic transformation and mechanical properties of cast Ni rich NiTiCo shape memory alloys

2014 ◽  
Vol 30 (14) ◽  
pp. 1795-1800 ◽  
Author(s):  
N. El-Bagoury
Keyword(s):  
Mechanical Properties ◽  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory

Influence of Nb content on martensitic transformation and mechanical properties of TiNiCuNb shape memory alloys

2016 ◽  
Vol 72 ◽  
pp. 30-35 ◽  
Author(s):  
G.C. Wang ◽  
K.P. Hu ◽  
Y.X. Tong ◽  
B. Tian ◽  
F. Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Nb Content

Effect of Aging on Microstructure and Martensitic Transformation in Ti-Zr-Ni Shape Memory Alloys

2007 ◽  
Vol 539-543 ◽  
pp. 3163-3168 ◽  
Author(s):  
Adrian Sandu ◽  
Koichi Tsuchiya ◽  
Shinya Yamamoto ◽  
Masayuki Tabuchi ◽  
Yoshikazu Todaka ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Vickers Hardness ◽  
Isothermal Aging ◽  
Transformation Temperatures ◽  
Second Stage ◽  
Stage Process

Effect of isothermal aging on martensitic transformation temperatures, mechanical properties and microstructure was investigated for a Ni-rich Ti-Zr-Ni shape memory alloy at temperatures ranging from 673 K to 773 K. The aging behaviour was two stage process: the first stage associated with an increase in the Vickers hardness and a decrease in martensitic transformation temperatures and the second stage with a decrease in the hardness and increase in the transformation temperatures. Second stage was also characterized by the appearance of nano-scale precipitates, which has never been reported.

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