Results 11 to 20 of about 3,689,671 (208)

Shape Memory Behavior of Porous NiTi Alloy

open access: yesMetallurgical and Materials Transactions A, 2016
Shape memory behavior of porous NiTi alloy is dependent on the phases, and mechanical or thermal background. The phases change with solution heat treatment and aging. Fully reversible shape memory behavior was observed during thermal cycling, and recoverable strains increased with the increasing stress from 2 to 50 MPa.
Kaya, Mehmet, Cakmak, Omer
openaire   +3 more sources

Investigation of Dynamic Recrystallization of NiTi Shape Memory Alloy Subjected to Local Canning Compression

open access: yesMetals, 2017
Physical mechanism for dynamic recrystallization of NiTi shape memory alloy subjected to local canning compression at various temperatures, 600, 700 and 800 °C, was investigated via electron backscattered diffraction experiments and transmission electron
Yanqiu Zhang, Shuyong Jiang, Li Hu
doaj   +2 more sources

A Combined Experimental-Numerical Approach for Investigating Texture Evolution of NiTi Shape Memory Alloy under Uniaxial Compression

open access: yesMetals, 2017
Texture evolution of NiTi shape memory alloy was investigated during uniaxial compression deformation at 673 K (400 °C) by combining crystal plasticity finite element method with electron back-scattered diffraction experiment and transmission electron ...
Li Hu, Shuyong Jiang, Yanqiu Zhang
doaj   +2 more sources

The determination and evaluation of Nitinol constitutive models for finite element analysis [PDF]

open access: yes, 2007
Superelastic Ni-Ti (Nitinol) is a member of the shape memory alloy (SMA) family of metals. The physical properties of Nitinol are highly dependant on a number of factors, including manufacturing method, subsequent processing, operating temperature, and ...
Dempster, W.M.   +4 more
core   +4 more sources

The Stability of NiTi shape memory alloys and actuator applications

open access: yes, 1999
Recent research and development in the area of shape memory alloys (SMA) continues to yield novel and unique results. Of the alloys that display the effect NiTi alloys have found the most commercial interest resulting in a number of niche applications ...
Morgan, Neil
core   +7 more sources

Preparation and Characterization of NiTi/PVA Nanofibers by Electrospinning [PDF]

open access: yesEngineering and Technology Journal, 2021
NiTi alloys are widely used in biomedical applications for their unique properties particularly the shape memory effect, superelasticity, and biocompatibility.
Akram Jabur, Randa Al-Tuhafi
doaj   +1 more source

Vacancies in NiTi shape memory alloys [PDF]

open access: yesJournal of Physics: Conference Series, 2014
NiTi shape memory alloys were examined with a mono-energetic positron beam. The thermal vacancy formation enthalpy was found to be 0.77±0.08 eV. Upon heating NiTi the martensitic S value is retained to temperatures significantly above the phase transition temperature and then decreases towards the austenitic value only gradually.
M H Weber, T Ablekim, K G Lynn
openaire   +1 more source

The effect of Nd:YAG laser pulse duration and post-weld heat treatment on the microstructure and mechanical properties of laser-welded NiTi shape memory alloy

open access: yesJournal of Materials Research and Technology, 2023
The heat input is the most critical factor in pulsed Nd:YAG laser welding and affects the microstructure and mechanical behavior of the welded alloys. NiTi alloy has been used for various applications such as medical equipment and MEMS due to its unique ...
Ali Rasouli, Homam Naffakh-Moosavy
doaj   +1 more source

Dissimilar Laser Welding of NiTi Alloy with Ferrous and Non-ferrous Material: Optimization of Process Parameters [PDF]

open access: yesE3S Web of Conferences, 2023
NiTi Shape Memory Alloy (SMA) is extensively utilized in various high-performance engineering industries such as medical devices, aerospace, air-craft structures, micro-electrical and electronic components, and more, owing to its exceptional properties ...
Parimanik Soumya Ranjan   +3 more
doaj   +1 more source

Microstructure and Properties of Shape Memory NiTi Alloy

open access: yesJournal of Physics: Conference Series, 2021
Abstract Many years ago, the shape memory alloys properties of Nickel Titanium (NiTi) were first discovered in the early 1960s, as shape memory alloys had many applied applications, in which oxidization problems were not of concern for the most part.
Jassim M. Salman Al-Murshdy   +1 more
openaire   +1 more source

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