2. Shape memory alloys are alloys that change
their shape from its original shape to a new
shape and while heating / cooling it will return
to its original shape
3.
4.
5.
6. TRANSFORMATION TEMPERATURE
• The range of temperature at which the SMA
switches from a new shape to its original
shape is called Transformation temperature or
Memory Transfer temperature
12. PROCESSING OFSMA
• Shape memory Effect:
It is very clear that at lower temperature
the SMA will be in Martensite structure and
when it is heated then it will change its shape to
Austenite structure and while cooling it will
again return to its Martensite form . This effect
is called SHAPE MEMORY EFFECT
13.
14.
15.
16.
17.
18.
19. PSEUDO ELASTICITY
• Pseudo elasticity occur in some type of SMA in
which the change in shape will occur even
without change in its temperature
20.
21. SUPER-ELASTICITY
• The SMA which have change in its shape at a
constant temperature are called Super-elastic
SMAs and that effect is known as Super-
elasticity.
27. • The type of materials which produces
spontaneous and reversible deformation just
upon heating and cooling even without load
are called TWO WAY SMA
