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06/27/2007 - 06/29/2007 | Maria Laach

Simulation of Phase Transformation

Development and optimisation of new materials for applications with high performance under enhanced and complex service conditions require new instruments for the treatment of transformations. They have to be based on fundamental principles in order to provide predictability. Empirical approaches cannot meet these requirements.

The computer simulation of phase transformations, based upon multicomponent thermodynamics, offers an excellent tool for treating the kinetics of microstructure formation, the morphological evolution during transitions, the prediction of precipitation sequences of stable and metastable phases and microstructural long term stability. Reliable thermodynamic data are available for a multitude of different materials. Since the thermodynamic driving forces are available, the kinetic data can now be reduced the mobility of the elements. They are also available for many substances and phases.

At present there exist three different approaches focusing on different aspects: (a) the sharp interface concept with local equilibrium at the moving boundary (DICTRA), (b) the phase field method with a diffuse interface allowing for a treatment of morphological evolutions like e.g. dendritic solidification (MICRESS), (c) the mean-field treatment of multi-component, multi-phase precipitation using the concept of maximum entropy production (Onsager?s extremum principle), including finite interface mobilities and large deviations from local equilibrium (MatCalc).

It is the aim of this seminar: ? to present these approaches in detail, ? to show their excellent predictive capability, ? to demonstrate how to work with the software. This will be done interactively by particular case studies which include steels, Ni-base alloys, Al-alloys.

The seminar addresses materials research and development departments in industry and at universities.

Information on participating / attending:

Date:

06/27/2007 13:30 - 06/29/2007 12:30

Event venue:

The seminar takes place in the Seehotel Maria Laach situated 15 km west of Koblenz. It is overlooking the wide round of the largest Eifel maar, a volcanoe that has become extinct about 10000 years ago and that now forms a lovely lake surrounded by low mountains and isolated forests. Next to the Seehotel is the 900 year old monastry Maria Laach, a holy place for contemplation and mediation.
56653 Maria Laach
Nordrhein-Westfalen
Germany

Target group:

Scientists and scholars, Students

Email address:

np@dgm.de

Relevance:

international

Subject areas:

Construction / architecture, Materials sciences, Mechanical engineering, Medicine, Nutrition / healthcare / nursing, Traffic / transport

Types of events:

Entry:

01/30/2007

Sender/author:

Niels Parusel

Department:

Pressereferat

Deutsche Gesellschaft für Materialkunde e.V.

Event is free:

no

Language of the text:

German

URL of this event: http://idw-online.de/en/event19374

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