Martensite twin formation and mechanical properties of B2 austenite NiTi shape memory alloy undergoing severe plastic deformation and subsequent annealing

2021 ◽  
pp. 111273
Author(s):  
Bingyao Yan ◽  
Shuyong Jiang ◽  
Dong Sun ◽  
Man Wang ◽  
Junbo Yu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Shape Memory Alloy ◽  
Severe Plastic Deformation ◽  
Shape Memory ◽  
Subsequent Annealing ◽  
Niti Shape Memory Alloy ◽  
Twin Formation

Crystallization of amorphous NiTi shape memory alloy fabricated by severe plastic deformation

2014 ◽  
Vol 24 (6) ◽  
pp. 1758-1765 ◽  
Author(s):  
Shu-yong JIANG ◽  
Ming TANG ◽  
Ya-nan ZHAO ◽  
Li HU ◽  
Yan-qiu ZHANG ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Shape Memory Alloy ◽  
Severe Plastic Deformation ◽  
Shape Memory ◽  
Niti Shape Memory Alloy

Nanotexture Studies of NiTi Shape Memory Alloy after Severe Plastic Deformation with the Use of TEM

2012 ◽  
Vol 186 ◽  
pp. 90-93 ◽  
Author(s):  
Danuta Stróż ◽  
Jakub Palka ◽  
Zdzisław Lekston
Keyword(s):  
Plastic Deformation ◽  
Shape Memory Alloy ◽  
Severe Plastic Deformation ◽  
Shape Memory ◽  
Niti Shape Memory Alloy ◽  
Specific Method ◽  
Transverse Movement ◽  
Alloy Properties ◽  
Maximal Strain

In this paper a specific method of severe plastic deformation (SPD) applied to the NiTi shape memory alloy and the obtained structure and the alloy properties are presented. Cold rolling combined with transverse movement of the rolls was the method. The maximal strain obtained was εc ≈ 10.20 for the relatively large specimens. Then the alloy was annealed in order to obtain samples of a given grain size. In the paper the structure of the alloy annealed at 350°C was studied with the use of TEM equipped with Nanomegas attachment ASTAR allowing determination of the orientation of grains in nanoareas.

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