|dc.identifier.citation||Definition of thermochemical and thermophysical properties to provide a database for the development of new light alloys, Vol. 2||en_US
|dc.description.abstract||Bearing in mind the alloy categories defined by industrial partners at the beginning
of the Action, a matrix was drawn up to define the binary systems forming the
building blocks for the evaluation of higher-order systems. These binaries were then
allocated to the different partners in Group C for evaluation.
All partners made use of the selected data for the elements published by A.T.
Dinsdale ' on behalf of SGTE.
There was also agreement amongst partners with respect to the modelling of particular
phases so that consistency could be maintained on proceeding from binary to
higher-order systems combining evaluations originating from different laboratories.
All results were prepared in exactly the same format to facilitate exchange of data
and to provide a standard format for computer storage of the data by the database
manager, Dr.Ansara, in Grenoble.
Evaluations to produce optimized sets of coefficients were carried out using one or both of the two programs Bingss/Tergss written by Lukas 2 and Parrot developped
by Jansson 3 contained in the Thermo-Calc databank system 4.
These programs make use of experimental thermodynamic and phase diagram
data, which are fed in as measured values with error limits. Using defined models for
the different phases of the systems concerned, optimized coefficients are produced
which permit a self-consistent description of the thermodynamic properties and the
phase boundaries of the alloys.
For some alloy systems the available experimental information is very scarce or
unreliable. In such cases, only a part of the system may have been dealt with. In
other cases, recourse may have had to be made to estimation procedures to obtain
input data for the optimization process. The accuracy of the calculations involving
these data will consequently be reduced.
The following pages present in summarized form a complete description of the
evaluation work carried out by the partners in Coordination Group C during the
course of Round 1 and 2 of COST 507. The brief reports for each system contain a
calculated phase diagram, information on the structures of the phases in the system.
The thermodynamic coefficients used to produce the calculated information are also
|dc.relation.isbasedon||Definition of thermochemical and thermophysical properties to provide a database for the development of new light alloys, Vol. 1: Proceedings of the final workshop, Vaals, the Netherlands, 9 to 12 March 1997 <http://bookshop.europa.eu/en/definition-of-thermochemical-and-thermophysical-properties-to-provide-a-database-for-the-development-of-new-light-alloys-pbCGNA18171/>; Vol. 3 Critical evaluation of ternary systems <http://bookshop.europa.eu/en/definition-of-thermochemical-and-thermophysical-properties-to-provide-a-database-for-the-development-of-new-light-alloys-pbCGNA18475/>||en_US
|dc.rights||CC0 2.0 Attribution||*
|dc.subject||Light metal alloys||en_US
|dc.title||Al-Mg COST 507 Thermochemical database for light metal alloys||en_US