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SUMMARY:Integrating thermodynamic and kinetic simulations within a CALPHAD
  framework for alloy design - Dr Yanheng Xie\, CUED
DTSTART:20251024T130000Z
DTEND:20251024T133000Z
UID:TALK239290@talks.cam.ac.uk
CONTACT:46601
DESCRIPTION:The progress in alloy design has created a growing need for pr
 edictive models that connect thermodynamics\, kinetics\, and microstructur
 e to understand the composition-process-structure-property (CPSP) relation
 ships of alloys. This presentation introduces an integrated CALPHAD-based
  modelling framework that couples thermodynamics with kinetics to simulat
 e microstructural evolution during phase transformations. The framework co
 mbines a Scheil model to describe non-equilibrium solidification and solut
 e segregation with a mean-field precipitation model that captures the nucl
 eation\, growth\, and coarsening of second phases. By coupling phase equi
 libria\, diffusion\, and interfacial thermodynamics\, the model quantitati
 vely predicts the evolution of precipitate size and distribution as a func
 tion of temperature and time\, establishing a digital description of proc
 esses from solidification to heat treatment. This methodology provides a 
 computational foundation for virtual process optimisation and digital allo
 y design. The framework can be readily applied to various processing route
 s\, including rapid solidification\, thermomechanical process\, and additi
 ve manufacturing\, supporting the development of high-performance structur
 al materials. The established framework bridges computation and experiment
 \, demonstrating how virtual alloy prototyping can support data-driven ma
 terials design and reduce experimental workload in intelligent manufacturi
 ng environments. "
LOCATION:Oatley 1 Meeting Room\, Department of Engineering
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