Modeling of deformation behavior concerned with structural phase transformation for shape memory alloy

2004 ◽  
Vol 2004.17 (0) ◽  
pp. 167-168
Author(s):  
Takeshi OKUYAMA ◽  
Yun LUO ◽  
Minoru Matsumoto ◽  
Toshiyuki TAKAGI
Keyword(s):  
Phase Transformation ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Structural Phase ◽  
Structural Phase Transformation

scholarly journals Effect of strain rate on strength and deformation behavior of an Fe-Mn-Al-Ni shape memory alloy

2021 ◽  
Vol 250 ◽  
pp. 05012
Author(s):  
Sebastian Henschel ◽  
Lutz Krüger
Keyword(s):  
Phase Transformation ◽  
Shape Memory Alloy ◽  
Strain Rate ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Image Correlation ◽  
Coarse Grained ◽  
Strain Rates ◽  
Localized Deformation ◽  
Strength And Deformation

The strength and deformation behavior of an Fe-Mn-Al-Ni shape memory alloy at different strain rates was studied. Furthermore, the effect of grain size was investigated. To this end, a batch with bamboo-like grain arrangement and a batch with smaller, nevertheless coarse, grains were analyzed. Tensile tests at quasi-static, intermediate, and dynamic loading rates were performed. Digital image correlation and microstructural analysis revealed the localized deformation and phase transformation in favorable oriented grains. At higher strain rates, a increased number of orientations was activated for the phase transformation. A higher strain rate resulted in an increased strength for the coarse-grained material while the bamboo-like material did not show this effect. The analysis of fracture surfaces revealed ductile fracture and cleavage fracture for all strain rates.

scholarly journals Study of the deformation behavior and structure formation of Ti-Zr-Nb shape memory alloy

2021 ◽  
Vol 1008 ◽  
pp. 012042
Author(s):  
V A Sheremetyev ◽  
O Akhmadkulov ◽  
V S Komarov ◽  
A V Korotitsky ◽  
S P Galkin ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Structure Formation ◽  
Deformation Behavior
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