scholarly journals The Effects of Aging on the Degree of Order in Cu-Al-Ni Shape Memory Alloys

2016 ◽  
Vol 57 (3) ◽  
pp. 257-262 ◽  
Author(s):  
Yoshiyuki Nakata ◽  
Yutaka Iizuka ◽  
Takafumi Ono
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Effects Of Aging ◽  
Degree Of Order

Effects of aging on stress-induced martensitic transformation in ductile Cu–Al–Mn-based shape memory alloys

2009 ◽  
Vol 57 (19) ◽  
pp. 5759-5770 ◽  
Author(s):  
Y. Sutou ◽  
N. Koeda ◽  
T. Omori ◽  
R. Kainuma ◽  
K. Ishida
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Effects Of Aging

scholarly journals Effects of Aging and Co Addition on Martensitic and Magnetic Transitions in Ni–Al–Fe β-based Shape Memory Alloys

2006 ◽  
Vol 46 (9) ◽  
pp. 1287-1291 ◽  
Author(s):  
Katsunari Oikawa ◽  
Yuuki Tanaka ◽  
Yuji Sutou ◽  
Toshihiro Omori ◽  
Fenghua Luo ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Magnetic Transitions ◽  
Co Addition ◽  
Effects Of Aging

Evolution of martensitic transformation in Cu–Al–Ni shape memory alloys during low-temperature aging

1999 ◽  
Vol 14 (7) ◽  
pp. 2806-2813 ◽  
Author(s):  
V. Recarte ◽  
R. B. Pérez-Sáez ◽  
M. L. Nó ◽  
J. San Juan
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Precipitation Process ◽  
Thermal Treatments ◽  
Low Temperature Aging ◽  
Power Measurements ◽  
Degree Of Order ◽  
Temperature Aging ◽  
Main Factor

The effect of thermal aging at 473 K on martensitic transformation characteristics have been studied in the Cu–Al–Ni shape memory alloys. An increase of martensitic transformation temperatures as a result of aging has been observed. Furthermore, the martensitic transformation shows an evolution with aging time from a single β3 ⇒ β′3 structural transformation to a β3 ⇒ γ′3 + β′3 transformation. Using internal friction and thermoelectric power measurements, as well as specific thermal treatments, it has been determined that the mechanism responsible for this evolution is an increase in the degree of order, thus rejecting the participation of a γ1 precipitation process. Finally, the increase of order at the next nearest neighbors has been established as the main factor responsible of the evolution of the martensitic transformation characteristics.

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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