Carbon dissolved in iron will be present as which of the following type(s) of crystalline imperfection...
Carbon dissolved in iron will be present as which of the following type(s) of crystalline imperfection
a
Second phase only
b
Point defect only
c
Point defect and second phase
d
Neither point defect nor second phase
Homework Answers
Answer is b) Point Defect Only
Where Carbon is dissolved in Iron, a solid solution is formed.
This is an alloy. Since the size of Carbon atoms is smaller than
that of iron, they sit in the interstitial sites of the iron
lattice structure. Thus, they form interstitial point
defects.
Formation of second phase depends on the solubility limit and will
not necessarily occur.
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