Thermal analysis of aluminum alloys as a tool to evaluate the grain refiners efficiency
- Aluminium Co. of Egypt, Nag Hammadi (Egypt)
- Assiut Univ. (Egypt)
- Central Metallurgical Research and Development Inst., Cairo (Egypt)
Al-5%Ti-1%B and Al-5%Ti-1C master alloys were used to grain refine some aluminum alloys. The factors that affect the efficiency of grain refiners (addition rate, holding time, pouring temperature and metal composition) were studied. Thermal analysis was used to evaluate the efficiency of the two grain refiners in parallel with a conventional method (KBI test). The characteristic parameters of the cooling curves have been correlated to the grain size of the castings. It was found that thermal analysis could be used as a tool to evaluate the efficiency of the grain refiners of aluminum alloys prior to casting. Also, it was found that Al-5%Ti-1%C master alloy is more efficient grain refiner than Al-5%Ti-1%B.
- OSTI ID:
- 372023
- Report Number(s):
- CONF-960202--; ISBN 0-87339-312-0
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM
ALUMINIUM ADDITIONS
ALUMINIUM BASE ALLOYS
BORON ADDITIONS
CARBON ADDITIONS
CHEMICAL ANALYSIS
CHROMIUM ADDITIONS
EXPERIMENTAL DATA
GRAIN REFINEMENT
GRAIN SIZE
IRON ADDITIONS
MAGNESIUM ADDITIONS
SILICON ADDITIONS
TEMPERATURE DEPENDENCE
THERMAL ANALYSIS
TIME DEPENDENCE
TITANIUM ADDITIONS
X-RAY DIFFRACTION