Results 21 to 30 of about 1,581 (182)

Brief Overview on Nitinol as Biomaterial

open access: yesAdvances in Materials Science and Engineering, 2016
Shape memory alloys remember their shape due to thermoelastic martensitic phase transformation. These alloys have advantages in terms of large recoverable strain and these alloys can exert continuous force during use.
Abdul Wadood
doaj   +1 more source

Experimental and numerical data for transformation propagation in NiTi shape memory structures

open access: yesData in Brief, 2019
This article provides experimental and numerical data for the propagation of stress-induced martensitic transformation within NiTi structures with uniform and nonuniform geometries.
Bashir S. Shariat   +3 more
doaj   +1 more source

ECAE processed NiTi shape memory alloy [PDF]

open access: yesMaterials Research, 2014
The current work evaluated the microstructures and martensitic transformation temperatures of NiTi shape memory alloy (SMA) deformed by equal channel angular extrusion (ECAE). The Ti-55.27wt.%Ni alloy was processed by 1 ECAE pass at 250 °C using a die with an intersection angle of 120°. After processing, samples were annealed at 300 °C, 400 °C and 500 °
Lucas, Fernanda Lídia Carvalho   +4 more
openaire   +4 more sources

Experiments on deformation behaviour of functionally graded NiTi structures

open access: yesData in Brief, 2017
Functionally graded NiTi structures benefit from the combination of the smart properties of NiTi and those of functionally graded structures. This article provides experimental data for thermomechanical deformation behaviour of microstructurally graded ...
Bashir S. Shariat   +10 more
doaj   +1 more source

Nanomechanics of shape memory alloys

open access: yesMaterials Today Advances, 2021
Shape memory alloy undergoing reversible martensitic transformation is an important class of metallic functional materials. In the past two decades, the development of shape memory alloys enables great advances in biomedical devices, microelectronics ...
M. Karami, X. Chen
doaj   +1 more source

Effect of selective laser melting process on phase transition and tensile properties of NiTi shape memory alloys

open access: yesFenmo yejin jishu, 2022
TiNi shape memory alloys were prepared by selective laser melting (SLM). The effects of laser energy density on the phase transformation, microstructure, tensile properties, and shape memory properties of the NiTi alloys under the different printing ...
LI Qing   +5 more
doaj   +1 more source

Research progress of hydrogen effect in NiTi shape memory alloys

open access: yesCailiao gongcheng
NiTi shape memory alloys are commonly subjected to mechanical stress and chemical corrosion challenges when used in orthodontic arch wires, cardiovascular stents, and fluid valve actuators.
ZHAO Hourui   +3 more
doaj   +1 more source

Deposition of Chitosan Layers on NiTi Shape Memory Alloy

open access: yesArchives of Metallurgy and Materials, 2015
Abstract The NiTi shape memory alloys have been known from their application in medicine for implants as well as parts of medical devices. However, nickel belongs to the family of elements, which are toxic. Apart from the fact that nickel ions are bonded with titanium into intermetallic phase, their presence may cause allergy. In order to protect human
Kowalski, Piotr   +2 more
openaire   +4 more sources

Modeling the transient behavior of the NiTi shape memory actuator using finite element analysis: Parametric study of the rate effects

open access: yesResults in Materials, 2019
Finite element simulation is presented to study the rate effects of the shape memory response of bent NiTi wire “C-shaped” exposure to load. A three-dimensional constitutive model for shape memory alloys proposed by Auricchio is implemented in the built ...
Sheymaa Alazzawi, Peter Filip
doaj   +1 more source

A review of shape memory stability in NiTi alloys [PDF]

open access: yesLe Journal de Physique IV, 2001
Stability and fatigue are terms often referred to when discussing the durability of the shape memory effect. This paper considers the meaning of these terms and how they relate to the macroscopic memory response and the microstructural accommodation response of NiTi alloys.
N. B. Morgan, C. M. Friend
openaire   +1 more source

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