Answer to Question #108142 in Material Science Engineering for Dilshad khan

Question #108142
the atomic packaging factor of iron decreases by what percentage you when it is cooled from 1000 to 900°c
1
Expert's answer
2020-04-06T12:06:49-0400

It is known that the atomic packing factor (APF) of the body center cubic (BCC) unit cell (APF=[(The volume of atom x number of atom in a unit cell)/volume of the unit cell)] is less (APF=0.68) than that of the one in the Face center cubic (FCC)unit cell (APF=0.74). In other words, the gamma iron phase (FCC) is less susceptible to host foreign atoms than the alpha iron phase(BCC).So to answer your question, the volume change (decrease) in iron is accompanied with phase transformation of alpha iron to gamma iron, 0.74-0.68=0.06


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS