(Al), (Si)

Solid solutions on the basis of aluminum, silicon (and other elements)

D

Grain size of primary dendrites of (Al): D _min, D _max minimal and maximal sizes

d

Dendritic parameter of (Al) primary crystals

d ?

Subgrain size

D _e

Average size of eutectic colonies

d _e

Dendrite arms spacing

V _c

Cooling rate upon solidification

S

Specific surface of inclusions (grain boundaries)

C _x

Concentration of a given component in alloy: C ₁, C ₂, C _Cu, C _Fe

C _{x y}

Concentration of a component in a phase: C _{1 2}, C _{2 2}, C _{Cu Al}

C _e,C _a

Concentration of component in eutectic and limit solubility in (Al)

? C, C _min, C _max

Concentration difference, minimal and maximal concentration

K

Distribution coefficient for an element

Q _V

Volume fraction of phases, pores, and eutectic

Q _M

Mass fraction of a phase or eutectic

m

Thickness of the second phase inclusions

I

Distance among inclusions

?

Specific weight (density)

?

Density of dislocations

? ₁, ? ₂

Density of dislocations outside and inside planar subgrain boundaries

b

Dislocation Burgers vector

a

Lattice spacing

?

Angle of disorientation between subgrains

D _V

Coefficient of volume diffusion

T

Temperature

?

Time