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alloy
a mixture of 2 or more elements that have metallic properties
diffusion
mass transport by atomic motion
isomorphous system
have 2 phases (solid, liquid) and 3 regions (solid, liquid, solid+liquid)
lever rule
a formula used to calculate how much of each phase is present at a given temperature and composition
phase
homogeneous portion that has uniform physical and chemical characteristics
phase equilibrium
refers to equilibrium where more than one phase may exist
phase diagram
graph that shows which phases exist at different temperatures and compositions
solubility limit
maximum concentration of solute that can be added without forming a new phase
tie line
a horizontal line drawn across a 2 phase region of a phase diagram that helps determine the amounts of each phase using the lever rule