Temperature Dependence of the Viscosity of Al–Sr Alloy Melts
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Zhonghua Zhang
Abstract
The temperature dependence of the dynamic viscosity of Al-Sr alloy melts has been investigated using a torsional oscillation viscometer. It has been found that the viscosity of the Al–Sr alloy melts decreases with increasing temperature, as well as the absolute value of the first derivative of viscosity with respect to temperature. Furthermore, an anomalous change occurs at about 1250 °C, indicating the occurrence of a change in the melt structure. The temperature dependence of the viscosity exhibits an exponential correlation and can be well fitted by an exponential decay equation. The comparison of the model predictions and experimental viscosities has also been made, and the model parameters are renewedly determined in the light of the present experimental results. The pertinent mechanisms are also discussed.
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The authors give grateful thanks for the support of the National Natural Science Foundation and Natural Science Foundation of Shandong Province, under grant Nos. 50071028 and Z99F01.
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© 2001 Carl Hanser Verlag, München
Artikel in diesem Heft
- Frontmatter
- Preisverleihung
- Werner-Köster-Preis 2000
- Aufsätze/Articles
- Decomposition of the Interstitial Solid Solution Pd(B)
- Texture Development in Al–Mg Alloys During High Temperature Annealing
- A Method for Determining the Weld Pool after Laser Beam Welding
- Composition–Pressure–Temperature Phase Diagram of the Silver–Germanium System
- Theoretical Study of P-Containing Transformation-Induced Plasticity Steel – Part 1: Determination of the Phosphorus Concentration
- Theoretical Study of P-Containing Transformation-Induced Plasticity Steel – Part 2: Analysis of the Potential TRIP Effect
- Influence of Microstructure on the Low and High Cycle Fatigue Behaviour of a Medium Carbon Microalloyed Steel
- Temperature Dependence of the Viscosity of Al–Sr Alloy Melts
- Preparation of an Al–Sr Master Alloy by Molten Salts Electrolysis
- Phase Decomposition of Cast Alloy ZnAl11Cu3
- Crystallographic Investigations on the Serrated Grain Boundaries in an AISI 316 Stainless Steel
- Bruch der Antriebswelle eines Sessellifts
- Mitteilungen/Notifications
- Personen
- Bücher/Books
- Tagungen/Conferences
Artikel in diesem Heft
- Frontmatter
- Preisverleihung
- Werner-Köster-Preis 2000
- Aufsätze/Articles
- Decomposition of the Interstitial Solid Solution Pd(B)
- Texture Development in Al–Mg Alloys During High Temperature Annealing
- A Method for Determining the Weld Pool after Laser Beam Welding
- Composition–Pressure–Temperature Phase Diagram of the Silver–Germanium System
- Theoretical Study of P-Containing Transformation-Induced Plasticity Steel – Part 1: Determination of the Phosphorus Concentration
- Theoretical Study of P-Containing Transformation-Induced Plasticity Steel – Part 2: Analysis of the Potential TRIP Effect
- Influence of Microstructure on the Low and High Cycle Fatigue Behaviour of a Medium Carbon Microalloyed Steel
- Temperature Dependence of the Viscosity of Al–Sr Alloy Melts
- Preparation of an Al–Sr Master Alloy by Molten Salts Electrolysis
- Phase Decomposition of Cast Alloy ZnAl11Cu3
- Crystallographic Investigations on the Serrated Grain Boundaries in an AISI 316 Stainless Steel
- Bruch der Antriebswelle eines Sessellifts
- Mitteilungen/Notifications
- Personen
- Bücher/Books
- Tagungen/Conferences
