Nickel-based Alloys - Thermo-Calc Software

TCNI14 for Thermodynamic and Properties Data

TCNI14 is a thermodynamic and thermophysical properties database for Ni- and Co-based alloys and superalloys. All necessary volume data (including molar volume and thermal expansivity) for various alloy phases is available in TCNI14. TCNI14 also comes with the description of electrical resistivity, thermal conductivity, and elastic constants as well as surface tension and viscosity of the liquid.

The database has been developed in a CALPHAD spirit with all of the constituent binary systems assessed for their full range of composition including all phases, plus most of the Ni-containing ternary systems, and many other ternary systems as well, in order to give an accurate thermodynamic description of the multicomponent systems of interest for various Ni- and Co-based alloys and superalloys including, but not limited to:

Hastelloy and the Haynes alloys
Inconel alloys
Waspaloy
René alloys
Incoloy
TMS alloys
CMSX single crystal alloys
Experimental Co-Al-W-based superalloys and W-free Co-based superalloys

TCNI14 was developed to be used with our entire suite of products: Thermo-Calc, the Add-on Modules, and all available SDKs.

MOBNI7 for Kinetic Data

MOBNI7 is a corresponding mobility database that provides kinetic data for those working with the add-on kinetic modules – the Diffusion Module (DICTRA) and the Precipitation Module (TC-PRISMA) – as well as a few specific calculation types, such as Scheil with back diffusion. If you do not purchase a license for an add-on kinetic module, you most likely do not need a mobility database. One of our technical sales representatives would be happy to help you determine whether your work requires a mobility database.

MOBNI7 is compatible and recommended to be used in combination with TCNI14.

Technical Information Sheet for MOBNI7

Nickel Model Library Free with Purchase of Databases

The Nickel Model Library is a package of property models used to set up calculations in the Property Model Calculator that are common to those working with nickel-based alloys. The library includes five models intended for those working in the nickel industry: Antiphase Boundary Energy, Coarsening, Equilibrium with Freeze-in Temperature, Solvus for Ordered Phase, and Strain-Age Cracking.

The Nickel Model Library is available for free to all users who have licenses for the nickel databases TCNI (version 11 or newer) and MOBNI (version 5 or newer) and valid Maintenance & Support Subscription (M&SS).

Learn more about the Nickel Model Library

Highlights of the Latest Releases

TCNI14

The new version of our Ni and Co-based Superalloys Database, TCNI14, was released with Thermo-Calc 2026b. For this release, TCNI14 significantly expands the scope of the database by extending its applicability beyond Ni-based superalloys to also include Co-based superalloys and is therefore renamed to: TCS Nickel and Cobalt-based Superalloys Database. This means that predictions of key characteristics, including phase transformation temperatures, γ′ and secondary phase volume fractions, partition coefficients, and all previously available physical properties, are now available for both Nickel- and Cobalt-based alloys.

1 new element: H (30 + 1 total)

Hydrogen (H) is now fully available. Previously, it was only available in the GAS phase
20 new phases, including 16 hydrides (752 phases in total)
21 new binary systems including hydrogen assessed (392 total)
11 new ternary systems assessed, including 9 with hydrogen (444 total)
Updates to thermal conductivity and electrical resistivity
The addition of hydrogen (H) enables the calculation of equilibrium H solubility in superalloys, as well as lattice expansion due to H uptake.
Predictions previously available for Ni based superalloys are now extended to experimental γ/γ′ Co based superalloys.

MOBNI7

The new version of MOBNI7, was released with Thermo-Calc 2026b. Read the Release Notes for more details.

1 new element: H (30 total)
Several new and reassessed binary and ternary systems for the FCC_A1 phase
The simulations of diffusion-controlled phase transformations involving hydrogen are now available

1: Elastic properties are only available for cubic BCC (A2 and B2), cubic FCC (A1 and L12), and hexagonal HCP (A3) phases.

2: Only for modelling a gas mixture.

Nickel and Cobalt-based Superalloys Databases

TCNI14 Quick Overview