Density and solidification shrinkage of hypereutectic Al–Si alloys
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Abstract
The relationship between the density and temperature in hypereutectic Al–Si alloys was measured in the temperature range from 800 K to (Tl + 30) K using the indirect Archimedean method. This method eliminates the effects of surface tension on the densities of salts and alloys and reduces the error in estimating the density and solidification shrinkage of Al–Si alloys. Eutectic LiCl–KCl salt was used as a reference liquid. The results indicate that the density vs. temperature curve has three transformation points: the liquidus temperature, eutectic transformation temperature and completely finished eutectic transformation temperature. The obtained densities of solid and liquid hypereutectic Al–Si alloys are in agreement with those reported in earlier investigations. The solidification shrinkage decreases from 2.5 % for the Al–Si alloy containing 15 % Si to −0.4 % for the alloy with 25 % Si.
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© 2017, Carl Hanser Verlag, München
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Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Molecular dynamics simulation of hydrogen atom diffusion in crystal lattice of fcc metals
- Rapid nickel diffusion in cold-worked type 316 austenitic steel at 360–500 °C
- Electron backscatter diffraction-analysis of deformed micro-milled commercially pure-titanium specimens at different strain values
- Phase equilibria in the Zr–Si–B ternary system (Zr–Si–ZrB2 region) at 1 173 K
- Density and solidification shrinkage of hypereutectic Al–Si alloys
- Effects of magnetic energy on microstructural evolution during peritectic solidification in ferromagnetic alloy investigated by phase-field simulation
- Improved quality of flash-lamp-crystallized polycrystalline silicon films by using low defect density Cat-CVD a-Si films
- Thermite welding of Cu–Nb microcomposite wires
- Modification of microstructure and mechanical properties of Al–Zn–Mg/3 wt.% Al2O3 composite through semi-solid thermomechanical processing using variable loads
- Magnesium nanocomposites reinforced with a high volume fraction of SiC particulates
- Porosity, microstructure and mechanical behavior of NiO–YSZ composite anode for solid oxide fuel cells
- DGM News
- DGM News