I am currently a student and I was asked this question but don't quite understand and I was wondering if anyone can explain it to me some. Any help will be very helpful. The questions is:
Why do you pre-heat larger pieces of steel at a higher temperature than that of smaller?
The only conclusion that I have come up with, which I am not sure if it correct, which is to help to prevent martensite getting into the steel.
Any direction to help me figure this out will be great.