Material	Nickel-Titanium alloy
	It is a Shape-Memory Alloy that, after being strained, at a certain temperature revert back to its original shape. Nickel-Titanium (NiTi) alloy is the most used Shape Memory Alloy. It is an equiatomic compound of NiTi, whose transformation temperature can range between -100 and +110 C. It has great shape-memory strain (up to 8%), is thermally stable, and has excellent corrosion resistance. Because of the reactivity of titanium, all melting of it must be done in a vacuum. Forging, bar rolling and extrusion are also used.
Category	Metals
Products	Stent for veins Superelastic glasses Coffeepot thermostat Electrical connector
Processes	Vacuum melting Forging Extrusion Rolling
Similar materials	Shape memory alloys Copper-base alloys Iron-base alloys
References	Shape Memory Applications Inc. Nitinol Devices & Components Inc. G. RAU GmbH & Co.
Photo	Thomas Nissen (Computer graphics)
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