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.
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.
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
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.