i think increasing the amount of undercooling creates finer grain size.
how increasing the amount of undercooling ?
increasing the amount of undercooling with increase cooling rate of melt.
NickE
excuse me. i am persian. i can speak english hardly.
I hardly understand some your talks. sorry
and i did not understood your Purpose in recent Comment.
What's the relationship between cooling rate of melt and
undercooling ( Supercooling ) ??
does undercooling ( Supercooling ) increase when cooling rate of melt increases ??
If there 's no general rule in this subject, What's the relationship between cooling rate of melt and undercooling...
could someone explain how "post weld heat treatment (PWHT)" is done ?
and if someone has clip(s) or picture(s) about this topic please Introduce me…tank you