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Shape Memory Alloys: NiTiNOL Wire. SEEMS Team L Jordy Lemus Cesar Sanchez Lopez Dywanne Smith Porsha Kerney. Background. 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)
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Shape Memory Alloys: NiTiNOL Wire SEEMS Team L JordyLemus Cesar Sanchez Lopez Dywanne Smith PorshaKerney
Background • 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
Atomic Structure Austenite Martensite
Objectives • 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
Training SMAs • Designed and shaped our NiTiNOL wire • 500° C for 15 min • Quenched in water immediately
Polishing 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.
SMAs revolutionized life Bone Anchors Robotic arms http://www.youtube.com/watch?v=3Srimon14CY&feature=related Medical Stents
Why NiTiNOL? • Nickel Titanium Naval Ordnance Laboratory • Nontoxic • Shape Memory • Strength • Made of inexpensive raw materials
Conclusion • Trained wires • Observed microstructures • Built various devices
Acknowledgements • Vice Provost of Educational Equity • Mr. Curtis Price(SEEMS director) • Dr. Libby Kupp(SEEMS Research Advisor) • Ms.Jacquelyn 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