metal shape
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2020 ◽  
Vol 114 ◽  
pp. 110987 ◽  
Author(s):  
Marina Martines Silva ◽  
Danielle Ramos Mota ◽  
Charles Biral Silva ◽  
Hueder Paulo Moisés de Oliveira ◽  
Diogo Silva Pellosi

Science ◽  
2020 ◽  
Vol 369 (6505) ◽  
pp. 855-858 ◽  
Author(s):  
Ji Xia ◽  
Yuki Noguchi ◽  
Xiao Xu ◽  
Takumi Odaira ◽  
Yuta Kimura ◽  
...  

Shape memory alloys recover their original shape after deformation, making them useful for a variety of specialized applications. Superelastic behavior begins at the critical stress, which tends to increase with increasing temperature for metal shape memory alloys. Temperature dependence is a common feature that often restricts the use of metal shape memory alloys in applications. We discovered an iron-based superelastic alloy system in which the critical stress can be optimized. Our Fe-Mn-Al-Cr-Ni alloys have a controllable temperature dependence that goes from positive to negative, depending on the chromium content. This phenomenon includes a temperature-invariant stress dependence. This behavior is highly desirable for a range of outer space–based and other applications that involve large temperature fluctuations.


Author(s):  
S N A M Kanafiah ◽  
H Ali ◽  
A Z Ahmad Firdaus ◽  
M S Zanar Azalan ◽  
Y Jusman ◽  
...  

Author(s):  
Y W Cho ◽  
Y J Oh ◽  
K W Yi ◽  
S H Chung ◽  
J D Shim

1995 ◽  
Vol 31 (3) ◽  
pp. 2158-2161 ◽  
Author(s):  
Ghun-Deok Suh ◽  
Hong-Bae Lee ◽  
Song-Yop Hahn ◽  
Tae-Kyung Chung ◽  
Il-Han Park

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