scholarly journals Transformation-Induced Relaxation and Stress Recovery of TiNi Shape Memory Alloy

Materials ◽  
2014 ◽  
Vol 7 (3) ◽  
pp. 1912-1926 ◽  
Author(s):  
Kohei Takeda ◽  
Ryosuke Matsui ◽  
Hisaaki Tobushi ◽  
Elzbieta Pieczyska
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Stress Recovery

Stress recovery behaviour of an Fe–Mn–Si–Cr–Ni–VC shape memory alloy used for prestressing

2013 ◽  
Vol 22 (12) ◽  
pp. 125037 ◽  
Author(s):  
W J Lee ◽  
B Weber ◽  
G Feltrin ◽  
C Czaderski ◽  
M Motavalli ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Stress Recovery

scholarly journals Effects of a Short Heat Treatment Period on the Pullout Resistance of Shape Memory Alloy Fibers in Mortar

Materials ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2278 ◽  
Author(s):  
Min Kyoung Kim ◽  
Dong Joo Kim ◽  
Young-Soo Chung ◽  
Eunsoo Choi
Keyword(s):  
Heat Treatment ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Memory Effects ◽  
Stress Recovery ◽  
Pullout Resistance ◽  
Pullout Tests ◽  
Dog Bone ◽  
Shape Memory Effects ◽  
Short Time

The feasibility of the crack closure of cementitious composites reinforced with shape memory alloy (SMA) fibers was investigated by performing single-fiber pullout tests. To demonstrate the fast crack closing ability, in this study, a heat treatment (300 °C) was applied for a short time (10 min). A short heat treatment was applied for 10 min, after the slip reached 0.5 mm, to activate the shape memory effects of cold-drawn SMA fibers. Two types of alloys were investigated, NiTi and NiTiNb, with two geometries, either smooth or dog-bone-shaped. During the heat treatment, the pullout stress of the SMA fibers initially decreased due to thermal extension, and then increased after heating for 1–3 min, resulting from the shape memory effects. However, their pullout stress recovery during and after the heat treatment was different for the different alloys and fiber geometries. The NiTi fibers generally produced a higher and faster recovery in terms of their pullout stress than the NiTiNb fibers, while the dog-bone-shaped fibers showed a faster pullout stress recovery than the smooth fibers.

Stress recovery behavior of an Fe-Mn-Si shape memory alloy

2021 ◽  
Vol 243 ◽  
pp. 112710
Author(s):  
Xiang-Lin Gu ◽  
Zhen-Yu Chen ◽  
Qian-Qian Yu ◽  
Elyas Ghafoori
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Stress Recovery ◽  
Recovery Behavior

Stress recovery and cyclic behaviour of an Fe–Mn–Si shape memory alloy after multiple thermal activation

2018 ◽  
Vol 27 (2) ◽  
pp. 025009 ◽  
Author(s):  
E Hosseini ◽  
E Ghafoori ◽  
C Leinenbach ◽  
M Motavalli ◽  
S R Holdsworth
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Thermal Activation ◽  
Stress Recovery ◽  
Cyclic Behaviour

Structure and mobility of martensite variant interfaces in a Cu-Zn-AI shape memory alloy

2003 ◽  
Vol 112 ◽  
pp. 519-522 ◽  
Author(s):  
W. Cai ◽  
J. X. Zhang ◽  
Y. F. Zheng ◽  
L. C. Zhao
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Martensite Variant
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