Mechanical Engineering - Engineering Materials - Discussion

4. 

An eutectoid steel consists of

[A]. wholly pearlite
[B]. wholly austenite
[C]. pearlite and ferrite
[D]. pearlite and cementite

Answer: Option A

Explanation:

No answer description available for this question.

Harpreet said: (Sep 19, 2014)  
The Steels which contain 0.8% carbon are known as Eutectoid Steel. It consists of wholly Pearlite. Pearlite is mixture of 87% Ferrite and 13% Cementite.

Ram said: (Sep 20, 2014)  
Give me some example of eutectoid steel.

Raman Kumar Jha said: (Oct 19, 2014)  
The eutectoid composition of ferrite and cementite is referred to as pearlite.

Shyam Loves Rupali said: (Dec 1, 2014)  
Pearlite = Cementite+Ferrite.

Kanugula Ravi said: (Jan 9, 2015)  
Eutectiod steel contains 100% of pearlite, which is consisting of 0.8% of carbon and in which that 100% pearlite contains 88% ferrite and and 12% cementite according to lever rule.

Balakrishna said: (Jul 8, 2015)  
Steel which contain 0.8% of carbon its known as eutectoid steel, pearlite contain cementite and ferrite. So it was wholly pearlite.

K.Harish said: (Dec 28, 2015)  
The Steels which contains 0.77% carbon are known as Eutectoid Steels. It consists of wholly Pearlite. The steels which contains less than 0.77% carbon are known as hypo eutectoid steels. It consists of pearlite and proeutectoid ferrite. The steels which contains greater than 0.77% carbon are known as hyper eutectoid steels. It consists of pearlite and proeutectoid cementite.

Ganapathi said: (Jul 3, 2016)  
@Kanugula Rav.

Lever rule means?

Emmanuel said: (Jan 3, 2017)  
The mixture of pearlite and cementite is what?

Paramveer said: (Nov 26, 2017)  
Is it possible to get 100% pearlite at hypo or hyper eutectoid steel? Give Reason.

Kajal Sharma said: (Jan 21, 2018)  
By lever rule, we can get the solid and liquid composition in a compound in iron carbon diagram.

Chandu said: (Apr 19, 2018)  
The steel have only 0.8% carbon contain called eutectoid steel & the steel has 0 to 0.8% carbon contain called hypo eutectoid steel & steel have contained 0.8 to 2.1% carbon called hyper-eutectic steel.

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