Pseudoelastic Behavior of Boron-Doped $$\beta_{1}$$-Type Cu-Al-Be Shape Memory Alloys

2021 ◽  
Author(s):  
T. Kalinga ◽  
S. M. Murigendrappa ◽  
S. Kattimani
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Boron Doped ◽  
Pseudoelastic Behavior

scholarly journals Understanding the Shape-Memory Alloys Used in Orthodontics

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Daniel J. Fernandes ◽  
Rafael V. Peres ◽  
Alvaro M. Mendes ◽  
Carlos N. Elias
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Nickel Titanium ◽  
Orthodontic Wires ◽  
Steel Alloys ◽  
Thermomechanical Characteristics ◽  
Shape Memory Properties ◽  
Niti Wires ◽  
Niti Shape Memory Alloys ◽  
Pseudoelastic Behavior

Nickel-titanium (NiTi) shape-memory alloys (SMAs) have been used in the manufacture of orthodontic wires due to their shape memory properties, super-elasticity, high ductility, and resistance to corrosion. SMAs have greater strength and lower modulus of elasticity when compared with stainless steel alloys. The pseudoelastic behavior of NiTi wires means that on unloading they return to their original shape by delivering light continuous forces over a wider range of deformation which is claimed to allow dental displacements. The aim of this paper is to discuss the physical, metallurgical, and mechanical properties of NiTi used in Orthodontics in order to analyze the shape memory properties, super-elasticity, and thermomechanical characteristics of SMA.

scholarly journals Effects of B2 nanoprecipitates on the phase stability and pseudoelastic behavior of Fe-Mn-Al-Ni shape memory alloys

2015 ◽  
Vol 33 ◽  
pp. 04005 ◽  
Author(s):  
P. La Roca ◽  
J. Medina ◽  
C.E. Sobrero ◽  
M. Avalos ◽  
J.A. Malarria ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Phase Stability ◽  
Pseudoelastic Behavior

A mechanical contact model for superelastic shape memory alloys

2020 ◽  
pp. 1045389X2095361
Author(s):  
Mohammad Sattari ◽  
Hossein Ashtari Esfahani ◽  
Mahmoud Kadkhodaei ◽  
Saleh Akbarzadeh
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Constitutive Equations ◽  
Contact Model ◽  
Stress And Strain ◽  
Resistant Material ◽  
Niti Wire ◽  
Contact Models ◽  
Acceptable Agreement ◽  
Pseudoelastic Behavior

Shape memory alloys (SMA) are nowadays widely used in different industries. The two extraordinary behaviors of superelasticity and shape memory effect make these alloys a super wear-resistant material. In a range of SMA applications, contact between adjacent surfaces occurs. In this research, a formerly-developed contact model, which individually considers each asperity, is extended to cases where superelastic shape memory alloys are used. Since constitutive equations of SMAs are based on stress and strain, to establish a relationship between classical contact models and the main arguments of these constitutive equations, a representative strain based on the pseudoelastic behavior of SMAs was defined. Experiments were conducted to verify the model’s predictions. In these experiments, a NiTi wire was pressed against a Steel plate; then, the measured penetration in the test and the values predicted by the contact model were compared. The reported results show an acceptable agreement between theory and experiment.

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