Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 5 (Q.No. 11)
11.
Which of the following iron exists at 910° C?
α-iron
β-iron
γ-iron
δ-iron
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
11 comments Page 1 of 2.

Subhajit said:   9 years ago
For pure iron it is the transition temperature (phase change temperature) between alpha iron and gamma iron. It is a thermal arrest temperature. So the question is confusing. The question itself should have some clarity.

Akshay said:   1 decade ago
Its depend on carbon content. If we look the iron-carbon phase diagram its true for 0.022% of carbon.

Manjunath Harakeri said:   6 years ago
Iron Exists at 910°c alpha iron.

When Iron exists above 910°c then it is Gamma iron.

Tarik said:   6 years ago
It mainly depends on carbon content. Though, based on the question it should be Gamma iron.

SALAHUDDIN said:   5 years ago
Alpha iron is stable upto 910 °C. But the more appropriate answer is γ iron.
(1)

Zaryab said:   5 years ago
According to iron, iron carbide diagram alpha iron lies between 720 to920.

Sanjeev said:   8 years ago
It should be a Gamma iron.

HEMLATA KOUSHAL said:   6 years ago
Yes, it is γ iron.

Waffith said:   6 years ago
It is γ iron.

Shiva kumar said:   7 years ago
It's γ iron.


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