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Titanium and TiAl-based Alloys Databases

TCTI5 is our thermodynamic and properties database designed for use with titanium and TiAl-based alloys. MOBTI4 is the corresponding mobility database needed for use with the add-on kinetic modules.

Technical Information Sheet for TCTI5

Technical Information Sheet for MOBTI4

Examples Collection for TCTI5

TCTI5 Quick Overview

    • Gibbs Energy
      • Volume
        • Surface tension of liquid
          • Viscosity of liquid
            • Electrical resistivity
              • Thermal conductivity
              • ELEMENTS: Ag, Al, B, C, Co, Cr, Cu, Fe, H, Hf, Mn, Mo, N, Nb, Ni, O, Pd, Pt, Re, Ru, Si, Sn, Ta, Ti, V, W, Y, Zr
              • ASSESSED PHASES: 433

TCTI5 for Thermodynamic and Properties Data

TCTI5 is a thermodynamic and properties database for conventional Ti-based and newly emerging γ-TiAl based alloys. All necessary volume data (including molar volume and thermal expansion) for various solution and intermetallic phases is available in TCTI5.

This database can be used to calculate various phase diagrams and thermodynamic properties in assessed systems, but also to predict stable and metastable phase equilibria (β-transus temperature, evolution of phase fractions vs. temperature, martensitic temperature, and so on) for a wide range of multicomponent alloys of industrial relevance, with light impurities (O, N, H, etc.) taken into account. Ti- and γ-TiAl-based alloys of relevance that can be studied include, but are not limited to:

  • Alpha and near-alpha alloys, such as Ti-6242Si
  • Alpha-beta alloys, such as Ti64
  • Beta or near-beta alloys, such as Ti 10-2-3
  • γ-TiAl based alloys, such as TNM alloys
  • And more

TCTI5 was developed to be used with our entire suite of products: Thermo-Calc, the Add-on Modules, and all available SDKs.

MOBTI4 for Kinetic Data

MOBTI4 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 can help you determine whether your work requires a mobility database.

MOBTI4 is compatible and recommended to be used in combination with TCTI5.

Learn About the Development of TCTI

We are continuously working on improving our databases. Below are two resources that discuss the development of the TCTI database.

Blog Post

Next Generation Database for Greener and More Efficient Aerospace Vehicles

This blog post discusses the development and improvements to TCTI5 facilitated by the ADVANCE Project.

Read now


Development of CALPHAD database for both Ti- and TiAl-based alloys
Yang Yang*, Hai-Lin Chen, Qing Chen and Anders Engström
MATEC Web of Conferences, Volume 321 Article 12011, October 2020, 20 pages
The 14th World Conference on Titanium

This publication discusses the development of the TCTI2 database. The authors are developers of the database, who are all Thermo-Calc Software employees.

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