The launch of a three-year research project across three countries and involving over 10 leading experts will significantly advance the design of titanium aluminide (TiAl) alloys used in the manufacture of lightweight aircraft turbine engine components.
The ADVANCE project—Sophisticated experiments and optimisation to advance an existing CALPHAD database for next generation TiAl alloys—consists of an extensive and ambitious experimental program to generate detailed and accurate phase equilibrium data for a series of homogenous Ti-Al-X alloys of high purity, aiming to resolve existing experimental controversies and to determine missing data points of relevance, and ultimately support modelling activities consisting of assessing and re-optimising individual subsystems and the development of cutting-edge CALPHAD databases for TiAl alloys.
Representatives of the ADVANCE consortium, left to right: Hai-Lin Chen (TCSAB), Roman Sowa (MTU), Annett Seide (MTU), Svea Mayer (MUL), Martin Schloffer (MTU), Martin Palm (MPIE), Anders Engström (TCSAB), Florian Pyczak (HZG), Marcus Rackel (HZG), Roland Schmier (MTU). Missing from the photo: Frank Stein (MPIE), Yang Yang (TCSAB)
Thermo-Calc 2019a was released in December 2018 and brings many new databases, improved tools for integrating Thermo-Calc into an ICME workflow and the first ever material-specific property model library.
Highlights of the Thermo-Calc 2019a release:
Expanded TC-Python for ICME integration, including the ability to do diffusion calculations and to access all the functionality of the Property Model Calculator including the new Steel Model Library.
Steel Model Library, with pre-configured martensite and pearlite models and for use with the Property Model Calculator.
Databases: 6 new and 2 updated. These include both thermodynamic and mobility databases for nickel-based, aluminum-based and titanium and titanium aluminide-based alloys. The magnesium-based and high entropy alloy databases are updated.
Thermo-Calc 2018b is released in June 2018 and includes the addition of three key features to the TC-Python API and two new thermodynamic databases for metal oxide solutions (TCOX8) and Mg-based alloys (TCMG5).
A Scheil composition profile created in TC-Python showing a solidified Ni-based superalloy.
High entropy alloys (HEAs), along with Multi-principal element alloys (MPEs) and Complexly concentrated alloys (CCAs), offer an exciting, emerging branch of materials research. Unlike conventional alloys, which are usually based on one principal element that, to a large extent, determines the properties of the alloy, these types of alloys consider a wide variety of elements, opening a new field for vast compositions and microstructures, making research into HEAs, MPEs and CCAs tremendously compelling.
Considered to be only 12 years old, these complex alloys were introduced in 2004 in two papers that were published a mere two months apart. The definition of HEAs, MPEs and CCAs varies, but in the broadest sense, HEAs are considered to be alloys consisting of five or more principal elements with 5 to 35 atomic percentage for each and based on a simple solid solution, while MPEs and CCAs are considered to be alloys with two or more principle elements. Continue reading →
In December 2014, the OECD-NEA will make available a free thermodynamic database applicable to nuclear materials.
This internationally recognised thermodynamic database, TAF-ID, was created in a joint project among 9 organisations, representing 6 member countries: Canada (AECL, RMCC, UOIT), France (CEA), Japan (JAEA, CRIEPI), The Netherlands (NRG), the Republic of Korea (KAERI) and The United States (DoE). Continue reading →