Mechanism of the Mg3Bi2 Phase Formation in Pb-Free Aluminum 6xxx Alloy with Bismuth Addition
نویسندگان
چکیده
In the present work, free-cutting aluminum alloy AA6026 with 1.1 wt.% bismuth addition was fabricated by different melt preparation methods in order to investigate whether route affects solidification sequence and thus has an influence on machinability of alloy. All experiments were designed simulate variable industrial conditions: induction melting furnace, electric resistance holding together grain refiner, effect time temperature before casting. Detailed thermodynamic analyses (DSC, Thermo-Calc) microstructural characterization (SEM-EDS, XRD) have been performed explain sequence, microstructure development especially formation intermetallic Mg3Bi2 phase.
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ژورنال
عنوان ژورنال: Crystals
سال: 2021
ISSN: ['2073-4352']
DOI: https://doi.org/10.3390/cryst11040424