Question

which of these is not a feature of shape memory alloys (SMA)
a) low density
b) low strain recovery
c) bio compatibility
d) bio degradability

Answer 1

Answer:

b) Low strain recovery

Explanation:

Shape memory  alloy is an alloy that can be deformed when cold but returns to its pre-deformed shape when heated.It may also be called memory metal.

features of shape memory alloys are,

low density,bio compatibility,bio biodegradability.

So, all three features of SMA excluding low strain recovery.

Answer 2

The correct answer is Option b (Low strain recovery).

Explanation:

• SMA seems to be a category of alloy that can withstand a tremendous amount or deal of external factor and yet does not deform because of its highly efficient physical properties.
• It's just that the "low strain or pressure recovery" isn't accurate of a certain SMA, it can also be restored via high-stress levels.

The other three methods have no connection with the particular circumstance. So option b seems to be the correct answer to this one.

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