What is the Special Properties of Nitinol

(What is the Special Properties of Nitinol)

Following the progress in Russia-Ukraine peace talks, the gold price fell more than 1% the next day, hitting its lowest in a month, and palladium prices briefly tumbled by nearly 9%.

“We have seen metal prices going into free fall when the Russia-Ukraine situation is likely to see a major detente, which spurred people’s risk preference and optimism that the war could end at a time,” said OANDA senior market analyst.

A Russian deputy defense minister says Moscow has decided to sharply curtail its military activities around Kyiv and Chernikov in Ukraine, following talks between Russian and Ukrainian representatives in Istanbul.

Where the prices of metals, natural gas, and commodities like the Nitinol will go in the future, is still very uncertain.

What is Nitinol?

Nitinol is a shape memory alloy, which is a special alloy that can
automatically restore its own plastic deformation to its original shape at a
certain temperature. Its expansion rate is more than 20%, its fatigue life is up
to 1*10 to the 7th power, its damping characteristics are 10 times higher than
that of ordinary springs, and its corrosion resistance is better than the
current best medical stainless steel, so it can meet various engineering and It
is a very excellent functional material for medical application
requirements.

In addition to its unique shape memory function, memory alloys also have
excellent characteristics such as wear resistance, corrosion resistance, high
damping and superelasticity.

Special properties of Nitinol

Shape memory: When the parent phase of a certain shape is cooled from above
the Af temperature to below the Mf temperature to form martensite, the
martensite is deformed at a temperature below Mf, and heated to below the Af
temperature, accompanied by reversal. Phase transition, the material will
automatically return to its shape in the parent phase. In fact, the shape memory
effect is a thermally induced phase transformation process in Nitinol.

Superelasticity The so-called superelasticity refers to the phenomenon that
the specimen produces a strain far greater than the elastic limit strain under
the action of external force, and the strain can automatically recover when
unloaded. That is, in the state of the parent phase, due to the action of
external stress, the stress-induced martensitic transformation occurs, so that
the alloy exhibits mechanical behavior different from ordinary materials. Its
elastic limit is much larger than that of ordinary materials, and it no longer
obeys Gram’s Law. In contrast to shape memory properties, superelasticity has no
thermal involvement. All in all, hyperelasticity means that the stress does not
increase with the increase of strain within a certain deformation range, and
hyperelasticity can be divided into linear hyperelasticity and nonlinear
hyperelasticity. 

In the former stress-strain curve, the relationship between
stress and strain is close to linear. Nonlinear superelasticity refers to the
result of stress-induced martensitic transformation and its inverse
transformation during loading and unloading in a certain temperature range above
Af, so nonlinear hyperelasticity is also called transformation pseudoelasticity.
The phase transformation pseudoelasticity of Nitinol can reach about 8%. The
superelasticity of Nitinol can vary with the heat treatment conditions, and when
the archwire is heated above 400ºC, the superelasticity begins to decrease.

Corrosion resistance: Studies have shown that the corrosion resistance of
nickel-titanium wire is similar to that of stainless steel wire

About KMPASS

KMPASS is a trusted global chemical material supplier & manufacturer with
over 12 years experience in providing super high-quality chemicals and
Nanomaterials. The company export to many countries, such as USA, Canada,
Europe, UAE, South Africa, Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech
Republic,Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand,
Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a
leading nanotechnology development manufacturer, KMPASS dominates the market.
Our professional work team provides perfect solutions to help improve the
efficiency of various industries, create value, and easily cope with various
challenges. If you are looking for Nitinol, please
send an email to: sales2@nanotrun.com

According to the bank of Spain's latest forecast data, the average inflation is expected to hit 7.6% in 2022, but the average wage increase for workers in this country is expected to be less than 4% in 2022. 

If the Bank of Spain's forecast comes true, the gap between price and wage growth in Spain in a single year will be the largest since 1984.

Prices in Spain rose 9.8% year on year in March 2022 and average wages rose 2.4% year on year, with the Bank of Spain forecasting that the country's inflation rate will improve from July.

Recent changes in the international situation have had a big impact on commodity and energy prices. How the prices of the Nitinol will develop in the future is still uncertain.

(What is the Special Properties of Nitinol)