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Corrosion behaviour of NiTi alloy
Electrochimica Acta, 2009Abstract In the present work, the corrosion behaviour of NiTi in Hanks’ solution at 37 °C was assessed by the use of electrochemical methods. Pure titanium and pure nickel were included in the study in order to understand the contribution of each alloying element.
N. Figueira +3 more
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The tribocorrosion behaviour of NiTi alloy
Applied Surface Science, 2014Abstract In biomedical applications, NiTi alloys are used mainly because of their favourable shape memory and superelastic properties. However, in many applications the tribocorrosion properties of these alloys can be of critical concern. For this reason the electrochemical and tribocorrosion properties of superelastic NiTi sheet and orthodontic ...
Tadeja Kosec +2 more
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Microstructure of As-cast NiTi alloy
Materials Characterization, 1991Abstract The metallography of as-cast NiTi alloy, of presumably pseudoelastic composition, is described. Characteristic morphologies, obtained in NiTi microstructure, were produced by different solidification conditions. A method is suggested to avoid the formation of primary hard phases during solidification.
M. Thier +4 more
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Fabrication of NiTi alloy: A review
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 2015Nitinol (NiTi) is categorized as a smart material which is highly recognized material for medical and other engineering applications. The behaviour of NiTi can be modified by altering the composition, modifying the porosity and applying external thermal and mechanical treatment.
Neeraj Sharma, Kamal K Jangra, Tilak Raj
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Transformation cycling in NiTi alloys
Journal of Physics F: Metal Physics, 1984NiTi alloys with different transition temperature sets Ms, TR and Af are considered here to be affected by cycling between the martensite and the parent phase. In alloys with a starting temperature Ms higher than 50 degrees C, Ms can shift on cycling below the critical temperature TR at which a transition to the rhombohedral (R) phase appears.
G Airoldi, G Bellini, C Di Francesco
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Surface oxidation of NiTi shape memory alloy
Biomaterials, 2002Mechanically polished NiTi alloy (50 at% Ni) was subjected to heat treatment in air in the temperature range 300-800 degrees C and characterised by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy. Thermogravimetry measurements were carried out to investigate the kinetics of oxidation. The results
G S, Firstov +4 more
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A new memristor based on NiTi smart alloys
2012 IEEE International Symposium on Circuits and Systems, 2012With the recent discovery of the memristor, and following the initial realization based on titanium dioxide (TiO 2 ), a plethora of potential device implementations have emerged. In this paper we present a novel memristive device based on a nickel titanium (NiTi) smart alloy.
Kyriakides, Elias +5 more
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Physical Characterisation of Endodontic Instruments in NiTi Alloy
Materials Science Forum, 2000NiTi based endodontic instruments are investigated in functionality and wear. The instrument surfaces have been studied applying Auger electron spectroscopy, mechanical analysis, differential-scanning calorimetry, wear tests, and scanning electron microscopy.
L Torrisi, G Di Marco
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2000
In orthodontics, we are moving teeth within the bone in order to bring the teeth into a good functional position and alignment. Therefore, we are using a fixed appliance technique. In orthodontic-fixed appliance therapy, the physical properties of the materials play an important role in the application of force to the teeth. To move teeth, we are using
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In orthodontics, we are moving teeth within the bone in order to bring the teeth into a good functional position and alignment. Therefore, we are using a fixed appliance technique. In orthodontic-fixed appliance therapy, the physical properties of the materials play an important role in the application of force to the teeth. To move teeth, we are using
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Chinese NiTi wire—A new orthodontic alloy
American Journal of Orthodontics, 1985Chinese NiTi wire was studied by means of a bending test to determine wire stiffness, springback, and maximum bending moments. Chinese NiTi wire has an unusual deactivation curve (unlike steel and nitinol wires) in which relatively constant forces are produced over a long range of action. The characteristic flexural stiffness of NiTi wire is determined
C J, Burstone, B, Qin, J Y, Morton
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