scholarly journals Effects of aging and thermal cycling on the microstructure and damping behaviors of a porous CuAlMn shape memory alloy

2020 ◽  
Vol 9 (4) ◽  
pp. 7020-7026
Author(s):  
Qian Wang ◽  
Liwei Wang ◽  
Jie Kang ◽  
Qingzhou Wang ◽  
Chunxiang Cui ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Thermal Cycling ◽  
Shape Memory ◽  
Effects Of Aging

Effects of Aging on the Microstructure and Phase Transformation Behavior of Cu-Al-Mn Shape Memory Alloy

2021 ◽  
Vol 882 ◽  
pp. 21-27
Author(s):  
Seyed Veghar Seyedmohammadi ◽  
Amin Radi ◽  
Guney Guven Yapici
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Aging Treatment ◽  
Scanning Calorimetry ◽  
Dsc Measurements ◽  
Peak Aged Condition ◽  
Peak Aged ◽  
Rolled Condition ◽  
The One ◽  
Effects Of Aging

In the present work, the effects of artificial aging treatment on the transformation temperatures and hardness of Cu-Al-Mn shape memory alloy have been investigated. The aging processes have been performed on the one-time re-melted and 90% rolled samples. Differential scanning calorimetry reveals that reverse transformation is present for the re-melted sample which is aged at 400°C. However, in 90% rolled condition, this transformation takes place at 200°C and 300°C. Hardness examination shows that the aged specimens possess higher values in hardness in comparison to un-aged samples at all studied temperatures. Although, the peak-aged condition was demonstrated at 300°C for the re-melted sample, the rolled sample displayed increased hardness levels up to 500°C. Based on the DSC measurements and microstructural observations, it can be asserted that the thermo-mechanical processing including rolling plus aging at 300°C provides favorable transformation characteristics for shape memory behavior.

scholarly journals Thermal Cycling Effects in a Cu–Al–Ni Shape Memory Alloy

1985 ◽  
Vol 26 (9) ◽  
pp. 646-652 ◽  
Author(s):  
Yoshiyuki Nakata ◽  
Tsugio Tadaki ◽  
Ken’ichi Shimizu
Keyword(s):  
Shape Memory Alloy ◽  
Thermal Cycling ◽  
Shape Memory
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