Fine grained steels have____________________?

Question: Yield strength of a polycrystalline metal with an average grain size, d, is proportional to
[A].

d1/2

[B].

d-1/2

[C].

d

[D].

d-1

Answer: Option B

Explanation:

No answer description available for this question.

Question: Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher
[A].

ductility

[B].

impact strength

[C].

machinability

[D].

melting point

Answer: Option C

Explanation:

No answer description available for this question.

Question: Heat treatment of steel is done to mainly change its __________ properties.
[A].

physical

[B].

chemical

[C].

mechanical

[D].

surface

Answer: Option C

Explanation:

No answer description available for this question.