Common Phases for Steel and Fe-alloys
TCFE14 Models for the Included Phases
The following lists common phase names and the corresponding Thermo‑Calc database phase names for some key steel and Fe-alloys.
| Name in the Database | Common Name and Description |
|---|---|
| FCC_A1 | Austenite (γ) as well as cubic carbonitrides (MeX) such as MoC, TiC, WC and ZrC |
| BCC_A2 | Ferrite (α) |
| HCP_A3 | Hcp metals as well as Me2X carbonitrides (ε) such as Cr2N, Mo2C, Ta2C, V2C, and W2C |
| CEMENTITE_D011 | Cementite (θ), Fe3C, Mn3C, Ni3B, and Co3B |
| C14_LAVES | This phase includes all MgZn2-type phases such as Fe2Mo, Fe2Nb, Fe2Ta, Fe2Ti, and Fe2W |
| CHI_A12 | (χ), an intermetallic compound containing primarily Fe, Cr, and Mo |
| GRAPHITE | Graphite |
| M6C_E93 | M6C carbides such as W3Fe3C |
| M7C3_D101 | M7C3 carbides such as Mn7C3 and Cr7C3 |
| M23C6_D84 | M23C6 carbides such as Cr23C6 and Mn23C6 |
| SIGMA_D8B | Sigma phase (σ), a chromium/molybdenum-rich intermetallic compound which is hard, brittle and non-magnetic. |
| MU_D85 | μ phase, such as W6Fe7 |
| MS_B1 | Rocksalt (B1) structure sulfides such as Alabandite (MnS) and Niningerite (MgS) |
| PI_A13 | a Cr-Ni nitride (π) |
| M5C2 | Mn5C2, also metastable Fe5C2 (χ) |
| M3C2_D510 | Cr3C2 (β) |
| MC_ETA | MoC1-x (η) |
| MC_SHP | MoC, WC |
| R_PHASE | a high temperature Fe-Mo phase |
| CORUNDUM | M2O3 oxides such as Al2O3 (Corundum), Cr2O3 (Eskolaite), and Fe2O3 (Hematite) |
| HALITE | MO oxides such as FeO (Wustite), MnO, NiO |
| SPINEL | M3O4 oxides such as Fe3O4 (Magnetite) and Cr3O4 |
| M2P_C22 | Phosphides such as Fe2P, Cr2P, Ni2P |
| M3P_D0E | Phosphide such as Fe3P, Cr3P, Ni3P |