____ is practically pure iron (in plain carbon steels) existing below the lower transformation temperature.

Question

Quizplus · Accepted Answer

Ferrite is practically pure iron in plain carbon steels existing below the lower transformation temperature. Cementite is a compound of iron and carbon and is a hard and brittle material. Pearlite is a mixture of ferrite and cementite and is formed from austenite during cooling. Austenite is a face-centered cubic form of iron with carbon in solid solution, which exists at high temperatures. Therefore, the best choice is A) Ferrite.

____ Is Practically Pure Iron (In Plain Carbon Steels) Existing