Cooling of Pure Iron | Material Science | by Prateek Gaikwad

Iron is relatively soft and ductile
● It shows the property of allotropy (exist in more than one crystal structure)
● Its melting point is 1539 ºC
● At normal room temperature iron has BCC structure and is called α-Fe or α-ferrite
● Solubility of carbon in α-Fe is very low (0.008% at room temperature and 0.025% at
its stable temperature
● At 910 ºC it changes to FCC structure and is called γ-Fe or austenite
● maximum solubility of carbon in γ-Fe is 2.04% at 1148 ºC
● At 1401 ºC it again changes to BCC structure and is called δ-Fe or δ-ferrite
● Maximum solubility of carbon in δ-Fe is 0.1 % at 1493 ºC
● At 768 ºC magnetic property of Fe disappears and it becomes nonmagnetic
● Critical temperature of pure iron are 1401 ºC, 910 ºC and 768 ºC (curie point)

[@kumargeducation5058]

Excellent explanation

[@SorenHopon]

Mote bhohut bholo laguchi video

[@jyotiranjansahoo2284]

Bro please make video on Cristal structure with same with respect to Temp. And Time. Also clarify the when you cool down the Alpha Iron in to different processes then how the Cristal structure behave and what are there effects after re crystallized. With mechanical properties also accordingly.

[@user-tf2sk5yd5k]

Ss top grade ka video desscuss kariye

[@sagarbagul3580]

What happened when austenite fast air cooled

[@SorenHopon]

Sir kimiti view jauni

[@prateekgaikwad3632]

Thanks