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Phosphor Peak

These two examples, T031_P_Peak_1D and T032_P_Peak_2D show full multicomponent diffusion with coupling to Thermo-Calc™ using industrial steel grades. The first example is one-dimensional and provides a ready benchmark against DICTRA™.

Solidification process at t=162.0015s showing the ferrite/BCC_A2 (orange), austenite/FCC_A1 (white) and liquid (red) as well as the diffuse phase interfaces (blue)

Alloy

ExampleA015_AlSiMg_Unresolved
Alloy systemFe-C-Mn-Si-P (Fe_C_Mn_Si_P.Ges5)
Composition
  • 0.4 wt% C
  • 0.8 wt% Mn
  • 0.7 wt% Si
  • 0.03 wt% P
TransitionSolidification

Simulation conditions

ExampleT031_P_Peak_1DT032_P_Peak_2D
Dimension1-D2-D
Grid size200 cells400x400 cells
Grid spacing0.5 microns2 microns
Interface thickness5 cells4 cells
Boundary conditions Phase field
  • east = insulation
  • west = insulation
  • bottom = insulation
  • top = insulation
Concentration field
  • east = insulation
  • west = insulation
  • bottom = insulation
  • top = insulation
Phase field
  • east = symmetric
  • west = symmetric
  • bottom = periodic
  • top = periodic
Concentration field
  • east = periodic
  • west = periodic
  • bottom = periodic
  • top = periodic
Solid phasesBCC_A2 (ferrite) and FCC_A1 (austenite)

Results

1-D

T031_P_Peak_1D

1-D concentration fields at t = 2000{\rm s}.

C Mn P Si

2-D

T032_P_Peak_2D

Solidification sequence

ferrite/BCC_A2 (orange), austenite/FCC_A1 (white), liquid (red), interface (blue)

t=0s t=50s t=100s
t=150s t=160s t=161.0015s
t=162.0015s t=166.7638s t=170s
t=200s t=500s t=3000s

Manganese (Mn) concentration evolution

t=0s t=20s
t=700s t=1000s

Files