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Isothermer Bereich des ternären AlSiB‐Systems bei 700 °C und seine Anwendungen
Author(s) -
Wu H.,
Liu Y.,
Liu Y.,
Tu H.,
Wang J.,
Su X.
Publication year - 2021
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.202000088
Subject(s) - isothermal process , scanning electron microscope , alloy , microstructure , materials science , energy dispersive x ray spectroscopy , ternary operation , phase (matter) , ternary numeral system , analytical chemistry (journal) , metallurgy , crystallography , chemistry , composite material , thermodynamics , chromatography , physics , organic chemistry , computer science , programming language
The isothermal section of the Al−Si−B ternary system at 700 °C has been calculated using FactSage software and experimentally determined using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and x‐ray powder diffraction(XRD). The calculated results show that there are six three‐phase regions in the isothermal section: Liquid‐Al+AlB 2 +(Si), AlB 2 +AlB 12 +(Si), (Si)+AlB 12 +SiB 3 , AlB 12 +SiB 3 +SiB 6 , AlB 12 +SiB 6 +SiB 14 , AlB 12 +SiB 14 +(B). Four three‐phase regions of Liquid‐Al+AlB 2 +(Si), AlB 2 +AlB 12 +(Si), (Si)+AlB 12 +SiB 3 and AlB 12 +SiB n +(B) were confirmed experimentally, which are consistent with calculated results. The small AlB 2 particles in the Al‐3B alloy have good refining effect on the primary α‐Al phase in the Al‐10Si alloy, which greatly refines the microstructure and improves the mechanical properties of the Al‐10Si alloy.