Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 4 (Q.No. 46)
46.
When filing or machining cast iron makes our hands black, then it shows that __________ is present in cast iron.
cementite
free graphite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

K.Sai Spandan said:   8 years ago
The grey colour is due to the fact that carbon is present in the form of free graphite.
(1)

Post your comments here:

Your comments will be displayed after verification.