The role of (001) microtwinning played during the deformation of stress induced martensite in Ti-Ni-Nb shape memory alloy

2003 ◽  
Vol 112 ◽  
pp. 743-746
Author(s):  
Y. F. Zheng ◽  
W. Cai ◽  
L. C. Zhao
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory

scholarly journals The Role of Nickel-titanium Shape Memory Alloy Embracing Fixator in Determination of the Implantation Angle of Hip Tumor Prosthesis Stem Following Tumor Resection and the Analysis of Its Efficacy: a Retrospective Study

2021 ◽  
Author(s):  
Yang Wang ◽  
Panyu Zhou ◽  
Demeng Xia ◽  
Yunyun Wang ◽  
Sheng Wang ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Tumor Resection ◽  
Hip Dislocation ◽  
Nickel Titanium ◽  
Prosthetic Replacement ◽  
Limb Function ◽  
Tumor Prosthesis

Abstract Background: To explore the role of nickel-titanium(NiTi) shape memory alloy embracing fixator in determination of implantation angle of hip tumor prosthesis stem and analyze its efficacy. Methods: 36 patients with proximal femur tumor were treated with extended tumor resection and prosthetic replacement. 14 patients received prosthetic replacements with the embracing fixators fixing between the junction of the prosthesis stem and the femur temporarily, while the other 22 patients received the same replacements but without the fixators. Following aspects were compared: occurrence of complications, limb function and active hip ROM.Results: There are fewer cases of hip dislocation in the group received prosthetic replacements with the use of embracing fixators. Occurrence of deep infection presented no difference between the two groups. Better limb function and higher active range of motion (ROM) on abduction or flexion were also found in the group using embracing fixators. Conclusion: Ni-Ti shape memory alloy embracing fixator plays a key part in assisting the accurate implantation angle of the prosthesis stem in the prosthetic replacement. The prosthesis stem can be adjusted to the optimal angle with the help of the embracing fixator. Patients have lower chance of dislocation, better limb function, and higher active hip ROM. Trial registration: retrospectively registered.

Role of Shape Memory Alloy Wires as a SENSAPTIC HMI Device

2020 ◽  
Vol 20 (12) ◽  
pp. 6422-6431
Author(s):  
D. Josephine Selvarani Ruth ◽  
K. Dhanalakshmi
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory

The role of phase transition in the fretting behavior of NiTi shape memory alloy

Wear ◽  
2005 ◽  
Vol 259 (1-6) ◽  
pp. 309-318 ◽  
Author(s):  
Linmao Qian ◽  
Zhongrong Zhou ◽  
Qingping Sun
Keyword(s):  
Phase Transition ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Niti Shape Memory Alloy

Role of severe plastic deformation on the cyclic reversibility of a Ti50.3Ni33.7Pd16 high temperature shape memory alloy

2010 ◽  
Vol 58 (19) ◽  
pp. 6411-6420 ◽  
Author(s):  
B. Kockar ◽  
K.C. Atli ◽  
J. Ma ◽  
M. Haouaoui ◽  
I. Karaman ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
High Temperature ◽  
Shape Memory Alloy ◽  
Severe Plastic Deformation ◽  
Shape Memory

scholarly journals Role of Glass Composition on Mechanical Properties of Shape Memory Alloy-Metallic Glass Composites

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Supat Chupradit ◽  
Indah Raya ◽  
Dinh Tran Ngoc Huy ◽  
Dmitry Bokov ◽  
Pham Van Tuan ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Md Simulation ◽  
Shear Bands ◽  
Laminated Composite ◽  
Softening Effect ◽  
Glass Composites ◽  
Wide Range ◽  
Tension Loading

In this work, the molecular dynamics (MD) simulation was applied to design a laminated composite structure comprised of the shape memory alloy (SMA) and Cu-Zr metallic glasses (MGs). A wide range of MG compositions was considered to tune the mechanical features and improve the homogenous plastic deformation during the tension loading. The results indicated that the martensitic transformation in the SMA inhibited the sudden shear band propagation in the composite for all the samples. Moreover, it was revealed that the mechanism of plasticity was significantly affected by the change of MG composition. In the Cu-rich MGs, the formation and propagation of thick shear bands occurred at the end of the tension loading; however, the increase in Zr content induced the interaction of multiple shear bands with finer configurations in the system. Nevertheless, the excessive Zr addition in the MG composition facilitated the aggregation of nanopores at the interface of SMA and MGs, which may be due to the softening effect in the Zr-rich MGs. Finally, it is concluded that an optimized MG composition is required for the trade-off between the plasticity and the strength in the SMA-MG composites.

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