Scheil–Gulliver simulation with partial redistribution of fast diffusers and simultaneous solid–solid phase transformations
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E. Kozeschnik
Abstract
A numerical procedure for the simulation of solidification and micro-segregation is presented. The iterative solution algorithm is based on the classical Scheil – Gulliver model; however, the new algorithm allows taking into account partial redistribution of fast diffusing elements and solid – solid phase transformations, such as the peritectic reaction in low-carbon steels. It is shown that, especially in interstitial/substitutional alloys such as steels, simulations performed with the new algorithm give considerably different predictions as compared to simulations carried out with the classical Scheil – Gulliver procedure. The new procedure is described in detail and the results are validated on experimental data, i. e. micro-segregation measurements, the determination of the brittle temperature range for hot-cracking and experimental data on the specific heat capacity during solidification.
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© 2007, Carl Hanser Verlag, München
Articles in the same Issue
- Contents
- Contents
- Editorial
- Computational Thermochemistry
- Gunnar Eriksson 65 years
- Basic
- Vegard's law: a fundamental relation or an approximation?
- Is it a compound or cluster energy formalism?
- Post-optimization elimination of inverted miscibility gaps
- Thermodynamic evaluation of the Au–Sn system
- Applications of thermodynamic calculations to Mg alloy design: Mg–Sn based alloy development
- Thermodynamic modeling of the CoO–SiO2 and CoO–FeO–Fe2O3–SiO2 systems
- Scheil–Gulliver simulation with partial redistribution of fast diffusers and simultaneous solid–solid phase transformations
- Analysis of X-ray extinction due to homogeneously distributed dislocations – Bragg case
- Applied
- Thermodynamic modelling in the ZrO2–La2O3–Y2O3–Al2O3 system
- Thermodynamic optimisation of the FeO–Fe2O3–SiO2 (Fe–O–Si) system with FactSage
- Reassessment of the Al–Mn system and a thermodynamic description of the Al–Mg–Mn system
- Application of FactSage thermodynamic modeling of recycled slags (Al2O3–CaO–FeO–Fe2O3–SiO2–PbO–ZnO) in the treatment of wastes from end-of-life-vehicles
- Bio-inspired syntheses of ZnO-protein composites
- Preparation and characterization of cobalt–bismuth nano- and micro-particles
- Strain rate dependency on deformation texture for pure polycrystalline tantalum
- Notifications
- DGM News
Articles in the same Issue
- Contents
- Contents
- Editorial
- Computational Thermochemistry
- Gunnar Eriksson 65 years
- Basic
- Vegard's law: a fundamental relation or an approximation?
- Is it a compound or cluster energy formalism?
- Post-optimization elimination of inverted miscibility gaps
- Thermodynamic evaluation of the Au–Sn system
- Applications of thermodynamic calculations to Mg alloy design: Mg–Sn based alloy development
- Thermodynamic modeling of the CoO–SiO2 and CoO–FeO–Fe2O3–SiO2 systems
- Scheil–Gulliver simulation with partial redistribution of fast diffusers and simultaneous solid–solid phase transformations
- Analysis of X-ray extinction due to homogeneously distributed dislocations – Bragg case
- Applied
- Thermodynamic modelling in the ZrO2–La2O3–Y2O3–Al2O3 system
- Thermodynamic optimisation of the FeO–Fe2O3–SiO2 (Fe–O–Si) system with FactSage
- Reassessment of the Al–Mn system and a thermodynamic description of the Al–Mg–Mn system
- Application of FactSage thermodynamic modeling of recycled slags (Al2O3–CaO–FeO–Fe2O3–SiO2–PbO–ZnO) in the treatment of wastes from end-of-life-vehicles
- Bio-inspired syntheses of ZnO-protein composites
- Preparation and characterization of cobalt–bismuth nano- and micro-particles
- Strain rate dependency on deformation texture for pure polycrystalline tantalum
- Notifications
- DGM News
