Page 243 - MATERIAL SCIENCE AND ENGINEERING PART 1
P. 243
Impurities in solids 1 2 3
1
Mechanism
It gets cooled Pouring
when poured temperature
into the mould T/t = Cooling rate Equilibrium superheat
and molten Thermal arrest freezing
metal in the temperature
liquid form Temperature, T The solidified metal in
will solidify. the mould (casting)
This time is Local solidification time gets cooled in the
called local mould to the
solidification Time, t temperature of
time. surroundings. 223
Politeknik Ibrahim Sultan
