Concentration phase transition associated with grain boundary segregation in systems with restricted solubility
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Boris Bokstein
Abstract
A new model of grain boundary segregation in systems with restricted solubility is proposed. The model is based on the following assumption: As soon as the solute concentration in the grain boundary achieves the bulk solubility limit, embryos of compounds appear in the grain boundary. The composition of these embryos corresponds closely with the nearest phase in the grain according to the phase diagram. The appropriate segregation isotherm taking into account these embryos demonstrates the concentration phase transition which shows itself as a jump in grain boundary concentration. The location and the height of this jump are discussed.
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© 2009, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Prof. Dr. Günter Gottstein
- Feature
- Interface Migration in Metals (IMM):“Vingt Ans Après” (Twenty Years Later)
- Basic
- On the solute-defect interaction in the framework of a defactant concept
- A new model of dynamic recovery for Stage III of pure fcc metals without cross slip
- Sequence of distinct microyielding stages of the monocrystalline nickel-base superalloy CMSX-6 at high temperatures
- Comparison of texture evolution in fcc metals predicted by various grain cluster homogenization schemes
- Recrystallization initiated by low-temperature grain boundary motion coupled to stress
- Sub-grain boundary mobilities during recovery of binary Al–Mn alloys
- Concentration phase transition associated with grain boundary segregation in systems with restricted solubility
- Second-order faceting–roughening of the tilt grain boundary in zinc
- A model of grain boundary diffusion in polycrystals with evolving microstructure
- Linear measures for polyhedral networks
- Testing a curvature driven moving finite element grain growth model with the generalized three dimensional von Neumann relation
- Grain-boundary source/sink behavior for point defects: An atomistic simulation study
- Applied
- Deformation modes and anisotropy in magnesium alloy AZ31
- Control of recrystallisation texture and texture-related properties in industrial production of aluminium sheet
- The combined effect of static recrystallization and twinning on texture in magnesium alloys AM30 and AZ31
- Comparison of damage development depending on the local microstructure in low alloyed Al-TRIP-steels, IF steel and a DP steel
- Nanoindentation of Ti50Ni48Fe2 and Ti50Ni40Cu10 shape memory alloys
- Early detection of crack initiation sites in TiAl alloys during low-cycle fatigue at high temperatures utilizing digital image correlation
- Superplastic failure mode in ultrafine grained magnesium alloy AZ31
- High temperature magnetic strengthening in iron-based alloys: Magnetic effects on deformation and fracture, revisited
- Notification
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Prof. Dr. Günter Gottstein
- Feature
- Interface Migration in Metals (IMM):“Vingt Ans Après” (Twenty Years Later)
- Basic
- On the solute-defect interaction in the framework of a defactant concept
- A new model of dynamic recovery for Stage III of pure fcc metals without cross slip
- Sequence of distinct microyielding stages of the monocrystalline nickel-base superalloy CMSX-6 at high temperatures
- Comparison of texture evolution in fcc metals predicted by various grain cluster homogenization schemes
- Recrystallization initiated by low-temperature grain boundary motion coupled to stress
- Sub-grain boundary mobilities during recovery of binary Al–Mn alloys
- Concentration phase transition associated with grain boundary segregation in systems with restricted solubility
- Second-order faceting–roughening of the tilt grain boundary in zinc
- A model of grain boundary diffusion in polycrystals with evolving microstructure
- Linear measures for polyhedral networks
- Testing a curvature driven moving finite element grain growth model with the generalized three dimensional von Neumann relation
- Grain-boundary source/sink behavior for point defects: An atomistic simulation study
- Applied
- Deformation modes and anisotropy in magnesium alloy AZ31
- Control of recrystallisation texture and texture-related properties in industrial production of aluminium sheet
- The combined effect of static recrystallization and twinning on texture in magnesium alloys AM30 and AZ31
- Comparison of damage development depending on the local microstructure in low alloyed Al-TRIP-steels, IF steel and a DP steel
- Nanoindentation of Ti50Ni48Fe2 and Ti50Ni40Cu10 shape memory alloys
- Early detection of crack initiation sites in TiAl alloys during low-cycle fatigue at high temperatures utilizing digital image correlation
- Superplastic failure mode in ultrafine grained magnesium alloy AZ31
- High temperature magnetic strengthening in iron-based alloys: Magnetic effects on deformation and fracture, revisited
- Notification
- DGM News