Cite three variables that determine the microstructure of an alloy.
Three variables that determine the microstructure of an alloy are (1) the alloying elements present, (2) the
concentrations of these alloying elements, and (3) the heat treatment of the alloy.
What thermodynamic condition must be met for a state of equilibrium to exist?
In order for a system to exist in a state of equilibrium the free energy must be a minimum for some specified combination of temperature, pressure, and composition.