What is Nickel-titanium alloy

What is Nickel-titanium alloy

2023-02-15 23:10:23  News

Nickel Titanium Alloy Pulverized Alloy of nickel-titanium The binary alloy of nickel and titan, or nitinol (or nitinol), is known as a "shape memory alloy". Shape memory alloys are special alloys that automatically recover their plastic deformation to the original shape when heated up. It has a higher expansion rate than 20%. Its fatigue life is approximately 1*107. It has a damping property 10 times greater than an ordinary spring. It's more resistant to corrosion than medical stainless steel. This makes it a versatile material that can serve many engineering and medical applications.
The memory alloy's unique shape memory function is not the only thing that makes it special. Other than its wear resistance, corrosion resistance, superelasticity, and high damping are also excellent.
The temperature-dependent change and mechanical pressure changes can cause two crystal phases in Nitinol alloy, the austenite and martensite. The Nitinol alloy's phase transition sequence is: the austenite phase as the parent, then R and finally martensite. If the R phase is rhomboid then the austenite at higher temperatures (greater than the equal: temperature austenite started at), or after the load has been removed is cube. This shape is very stable. Martensite phases are relatively low in temperature, below Mf, or when loading is done externally. They can be hexagonal and ductile.

Physical Properties of Nickel Titanium Alloy Powder
1)Shape memory. 1. Shape memory. When the parent phase is heated below Mf to create martensite from a particular shape, it is chilled below Af to form martensite. Reverse phase transformation allows the material to automatically restore its original shape. Actually, shape memory is an inductive phase transition in Nitinol.
2) Superelasticity. 2) Superelasticity. A specimen may have a strain greater than its elastic limit when subject to external forces. The strain can be easily recovered by unloading. The stress-induced martensitic transform occurs in the parent material and causes a change in mechanical behavior. Hooke's law does not apply to this alloy, as its elastic limit is much higher than for ordinary materials. Superelasticity is not affected by thermal energy, unlike shape memory properties. Hyperelasticity, in other words, means the stress is not increased with an increase in strain over a range of deformations. You can divide hyperelasticity into nonlinear and linear hyperelasticity. Nearly linear relationship exists between stress and strain in the old stress-strain graph. Nonlinear Hyperelasticity refers only to stress-induced martensitic and its inverse transformations occurring during loading/unloading processes. It is also known as pseudo-elasticity phase transformation. Nitinol alloy has a pseudo-elasticity around 8%. You can change the heat treatment conditions to alter Nitinol's superelasticity. If the heat treatment conditions are changed to 400C, then the superelasticity will decrease.
(3) Sensitivity of oral temperature. Oral temperature has no effect on stainless steel wire or CoCr alloy tooth orthotic wire force. Variation in temperature affects the orthodontic strength of superelastic Nitinol orthodonticwire. If the deformation rate is constant, it will be less. When the temperature is rising, the orthodontic force grows. The appliance can stimulate blood circulation in areas where there is blood stagnation. It will accelerate tooth movement. The Orthodontist, however, is unable to accurately measure and control corrective forces in an oral environment.
4)Corrosion resistance. Research has shown that nickel-titanium wire's corrosion resistance is comparable to that of stainless wire.
5)Toxicity resistance: Nickel titanium shape memory alloy is about 50% nickel. Nickel has been known to cause carcinogenic effects and promote cancer. Because the Ni-Ti alloy has good biocompatibility, it acts as a barrier by oxidizing the layer of titanium. Ni may be blocked by TiXOy/TixNiOy in the surface layer.
6) Soft orthodontic force. Cobalt chrome-nickel wire, cobalt chrome-nickel wire, nickel-chromium alloywire, Australian alloywire, gold wire, and soft orthodontic force are some examples of commercially available dental wires. The load-displacement curves for these wires were tested under the tensile and three-point bent conditions. Nitinol’s unloading curve platform is both the lowest- and most flattest. It indicates that Nitinol provides the best and most gentle correction force.
7) Good shock absorption A good shock absorber is essential. Study results showed that archwire stainless wire wire vibrations are greater than those of hyperelastic ni-titanium silk and super-elastic ni-titanium arwire. The initial vibration amplitude for archwire steel wire was only half the size of that of stainless wire wire. Good vibration and shock absorption properties of the archwire are important to the health and well-being of teeth. Traditional archwires, such as the stainless steel, can increase root absorption.

Nickel Titanium Alloy Powder Properties
Additional Names nickel-titanium, shape-memory nitinol, NiTi, Ni-Ti
CAS No. 52013-44-2
Formula compound Ni-Ti
Molecular Weight N/A
Appearance black powder
Melting Point 1300degC
Boiling Point N/A
Density 6.45g/cm3
Solubility in water N/A
Get the exact Mass N/A

Nitinol Nickel Titanium Niti Alloy Pulp

Nickel-Titanium Alloy Pulver Applications
Ni-Ti is a widely used alloy in biomedicine, aerospace, defense and military industries.

Major Supplier of Nickel Titanium Alloy Powder
Rboschco Technology Co. Ltd., (Rboschco), is a reliable global supplier of chemicals and manufacturers with more than 12 years experience. This includes super-high-quality chemical products, such as metal alloys, graphite powders, zinc sulfide powders, calcium nitride or 3D printing powders.
High-quality products are what you want Nickel Titanium Alloys Powder Please feel free and contact us to send an enquiry. (brad@ihpa.net)


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