Shape Memory Alloys: NiTiNOL Wire
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Transcript of Shape Memory Alloys: NiTiNOL Wire
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First record of shape memory transformation was found in 1932(AuCd)
Shape memory effect was discovered in Nickel-Titanium at the Naval Ordnance Laboratory(NiTiNOL)
Super elasticity
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Austenite Martensite
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Experiment with NiTiNOL wire to observe it’s behavior
Learn how to train NiTiNOL wire Measure properties and examine
microstructure Design and build devices using NiTiNOL
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Designed and shaped our NiTiNOL wire 500° C for 15 min Quenched in water immediately
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Polish the NiTinol
Etched our samples
Observed under two different Microscopes
Experimented with NiTinol
springs, rods, and tubes
Used all of the preparation to
build a device.
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Bone Anchors
http://www.youtube.com/watch?v=3Srimon14CY&feature=related
Robotic arms
Medical Stents
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Compare Contrast
All NiTiNOL wire Different arrangements
Same length LW on top wire
Same amount of heat applied and same shrinkage
Right angle- medium work
Same diameter MW on bottom wire.
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Nickel Titanium Naval Ordnance Laboratory
Nontoxic Shape Memory Strength Made of inexpensive raw materials
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Trained wires Observed microstructures Built various devices
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Vice Provost of Educational Equity Mr. Curtis Price(SEEMS director) Dr. Libby Kupp(SEEMS Research Advisor) Ms.J acquelyn Kirchner (undergrad student) Ms. Jody Markley(UBMS director) Mr. Derek James(UBMS Assistant Director) Ms. Joanne Nash(UBMS Administrative
Assistant) Ms. Jackie Mills(UBMS teacher) All UBMS staff
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