Examples of Industial Use of MTDATA
MTDATA with its associated databases is a versatile tool for
materials R&D. Here are just a few of the ways in which industry
is exploiting its potential.
Continuous casting of steel
Corus use MTDATA to study the effect of segregation on
microstructure. The diagram to the right shows a Scheil plot of the
segregation of components in a stainless steel, calculated by
coupling a simple process model to MTDATA.
Calculated thermodynamic properties, such as
heat capacities, can also be plotted out or tabulated, as shown to
the left. These can be used in other commercially available software
packages for modelling the solidification of an alloy in a
particular mould and predicting the extent of shrinkage.
MTDATA is being used at NPL to develop thermodynamic models for
slags and in the modelling of a variety of pyrometallurgical
processes. The diagram is one of a series of quaternary liquidus
projections produced for users of the ISF blast furnace process for
extraction of zinc and lead.
Johnson Matthey has used MTDATA to investigate the subtleties of
how the composition of vehicle exhaust catalysts affects performance
under changing conditions which span all types of running including
start-up. Calculations have shown that equilibration of combustion
products at low temperatures will suppress CO and NOx,
but, without suitable catalyst modification, may result in the
formation of H2S. The diagram below shows changes in the
levels of various sulphur-containing species in the gas phase as
temperature is increased.