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A new approach to multi-phase formulation for the solidification of alloys

Multi-phase field is the established methodology for microstructural simulation in complex engineering alloys with both Open-Source (www.openphase.de) and commercial (www.micress.de) packages available. Despite this such models have suffered from a number of problems including; the creation of spurious phases at interfaces, a dependence on the number of phases present and an inability to reproduce single phase results. By applying the principles of differential geometry we have proposed a formalism that overcomes all of these problems previously associated with this methodology. NPL have been approached and they are keen to integrate these developments with their alloy design software MTDATA (Alan.Dinsdale@npl.co.uk).