Thermal analysis measures the cooling curve of the solidifying
Apelian, Metal Processing Institute/WPI, discussed the advantages of rheocasting, a process that is achieved by solidifying
the required alloy to a semisolid state in a special container (steel/ ceramic).
metal must reject the hydrogen or resultant castings will suffer from porosity.
Thicker walls will solidify more slowly, which means they will feed solidifying
As warmer and cooler molten metal moves (both in the bulk melt and the interdendritic spaces in the mushy zone), the flow in turn alters the temperature field in the solidifying
The interplay between the solidifying
material and the flow patterns during filling and feeding of the casting determine the material's response.
Directional solidification moves faster from the ends of the sections because of the greater amount of surface area through which the solidifying
metal can lose its heat.
This is the result of the penetrating metal solidifying
faster at lower pouring temperatures in conjunction with a more rapid heat transfer promoted by the increased contact pressures caused by higher pouring rates.