Effects of Fe, Mn, chemical grain refinement and cooling rate on the evolution of Fe intermetallics in a model 6082 Al-alloy
نویسندگان
چکیده
The solidification microstructures formed in a model 6082 alloy with 0.2–1.0 wt % Fe were examined under different cooling rates and the effects of 0.5 Mn Al–5Ti–1B grain refiner addition investigated. results compared against Thermo-Calc, differential scanning calorimetry (DSC) curve analysis. promotes primary-Al refinement from growth restriction constitutional undercooling but increases detrimental β–(Al9Fe2Si2) intermetallic. contributes to formation α–Al15(Fe,Mn)3Si2 at expense increased intermetallic content. inoculation not only produces strongest grains also refines Fe-intermetallics by enhancing their nucleation restricting volume interdendritic liquid pockets.
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ژورنال
عنوان ژورنال: Intermetallics
سال: 2021
ISSN: ['0966-9795', '1879-0216']
DOI: https://doi.org/10.1016/j.intermet.2021.107132