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Shape Memory Alloys

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									 Nitinol


Rene Valdez Jr.
 MEEN 3344
              Origin
Nitinol is an acronym for Nickel Titanium
Naval Ordnance Laboratories
It was developed by William Buehler
and Frederick Wang
A shape memory alloy is an alloy that
“remembers” its shape.
Nickel-Titanium alloys were first
developed in 1962 and 1963.
         How It Works
One Way
 When cold, the material will deform and
  stay in the deformed shape
 Upon heating, it will return to its original
  shape
Two-Way
   Material remembers two shapes, one for
    low temperature and one for high
           It’s Uses
Piping
Dental Braces
Hydraulic Line Couplings (For
Airplanes)
Eyeglass Frames
       Weaknesses
Energy Inefficiency
Slow Response Times
Yield Strength Low Compared to Steel
Expensive to Manufacture and Machine
        Bibliography
http://www.ruhr-uni-
bochum.de/sfb459/english/
http://www.stanford.edu/~richlin1/sma/s
ma.html
http://www.nitinol.com/4applications.htm

								
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