Question

impurity not responsible for embrittlement
a.sn b.sb c.si d.As
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Answer 1

Answer:

C. SI

Explanation:

The embrittlement is due to segregation of impurities (Sb, Sn, P, As) to the boundaries.

Answer 2

Answer:

Silicon $(Si)$ is not responsible for embrittlement. The correct option is c.

Explanation:

• When a material becomes less ductile and becomes brittle, then the process is called embrittlement.
• Neutron embrittlement, sulfide stress cracking, liquid metal embrittlement, and hydrogen embrittlement are the various forms of embrittlement.

When certain impurities like Antimony $(Sb)$, Arsenic $(As)$ , and Tin $(Sn)$ are present in the steel then these impurities tend to get separate which results in temper embrittlement.

So, silicon $(Si)$ is the only impurity that does not cause embrittlement.

So, the correct option is c.