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High Performance Nickel Titanium Alloy Plate Niti Alloy Sheet For Pacemaker High Melting Point

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High Performance Nickel Titanium Alloy Plate Niti Alloy Sheet For Pacemaker High Melting Point

Name: High Performance Nickel Titanium Alloy Plate Niti Alloy Sheet For Pacemaker High Melting Point
Brand: HUONA
Price: 1 USD

Brand Name : HUONA

Model Number : F55/ F56

Certification : ISO9001

Place of Origin : CHINA

MOQ : 1pcs

Price : Negotiate

Payment Terms : T/T

Supply Ability : 2000Tons/ Year

Delivery Time : Around a week

Packaging Details : Wooden/ Carton

Product name : Niti Alloy

Product composition : Nickel Titanium

Product shape : Plate/Sheet

Product surface : Bright

Sample : Support

Shipping way : Ship by air/sea/express

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Product Description

wct Description
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Main Applications
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Attribute	Details	Attribute	Details
Model NO.	Niti Sheet/ Plate	Technique	Cold Rolled
Grade	F55/ F56	Shape	Plate/ Sheet
Key Words	Niti Alloy	Thickness	Accept customization
Length	Customized	Diameter	Accept customization
Sample	Support	Surface	Lack, Peeled, Polishing, Bright
MOQ	5KG	Transport Package	Wooden Package
Specification	Niti Alloy	Trademark	HUONA
Origin	China	HS Code	7219350000
Production Capacity	2000 Tons/Year

Introduction

Ti-Ni alloy, consisting of nickel and titanium alloy in nearly equiatomic proportions, is known for
its unique mechanical properties of shape memory and superelasticity.
These properties occur in association with thermoelastic martensitic transformation.
Superelasticity is a phenomenon at a temperature above the reverse transformation temperature range,
associated with stress-induced martensitic and reverse transformations. The alloy exhibits high flexibility
owing to its wide recoverable strain range, in which the stress is kept low. Since Ti-Ni alloy shows
high corrosion resistance and good biocompatibility, it has been applied in the medical and dental fields.

Composition

The chemical composition of NiTi alloy is outlined in the following table.

Element	Value %	Element	Value %
Ni	40~50	Mo	<0.01
Ti	50~60	Si	<0.01
Al	<0.1	Fe	<0.05
Cu	<0.03	Mg	<0.02

Physical Properties

The physical properties of NiTi alloy are tabulated below.

Properties	Unit	Ni-Ti	Cu-Zn-Al	Cu-Al-Ni	Cu-Al-Be
Composition		Nickel titanium	Copper zinc aluminium	Copper aluminium nickel	Copper aluminium beryllium
Melting point	°C	1260-1310	950-1020	1000-1050	970-990
Density	Kg/m3	6400-6500	7800-8000	7100-7200	7300
Young's modulus	Gpa	95	70-100	80-100	90
Tensile strength (in martensite domain)	Mpa	800-1000	800-900	1000	900-1000
Breaking strength elongation	%	30-50	15	8-10	15
Fatigue limit in austenite domain	Mpa	350	270	350	−

Fabrication

Cold working

Since the Ti-Ni alloy is an intermetallic compound, cold workability is not good and there are many problems with
using this method of fabrication. In cold working, it is necessary to keep the cold work rate at around 40%
and then soften by annealing. Figure 5.8 shows the work hardening curve.
Because the work hardening rate of Ti-Ni alloy is high, this makes the decrease in workability worse.

Hot processing

The workability of the Ti-Ni alloys is excellent compared with other SMAs, although it is inferior to that of steel;
workability is especially good at high temperatures over 700 °C, where the Ti-Ni alloy becomes more stretchable
due to its reduced strength as shown in Fig. 4.6. However, if excessive titanium is present locally, for example,
due to segregation, a liquid phase appears at temperatures over 950 °C (Murray, 1996) and cracks may form
during processing; thus it is advisable to use a processing temperature of 700 to 950 °C. In particular,
since working speed is relatively fast in hot rolling, attention must be paid to avoid unregulated,
local temperature increases due to the heat of processing.

Applications

NiTi alloy also has good biocompatibility and is compatible with human tissues without causing obvious rejection
or allergic reactions, which makes it safe to be used in the manufacture of various implants and medical devices.
1 At the same time, NiTi alloy also has good corrosion resistance, high strength and lightweight characteristics.
It can exist stably in the body for a long time without being corroded by body fluids or tissues, while providing
sufficient strength while keeping the devices and implants lightweight.

Specifically, the application of NiTi alloy in the medical field includes but is not limited to:

Stents: such as heart stents, vascular stents, etc., used to support narrowed or occluded blood vessels
and restore blood circulation.

Implants: such as orthopedic implants, used to repair or replace damaged bone tissue.

Catheters: used in various minimally invasive interventional and endoscopic surgical devices to help
doctors perform precise treatment.

Occluders: used to block defects or holes in the heart or other blood vessels.

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