Abstract
Non-metallic inclusions formed during multi-stage ductile iron melt treatment play an important role in solidification, structure, and casting quality. Professor Carl Loper made fundamental studies on the role of inclusions in heterogeneous nucleation of graphite. In this article, a comparison of inclusions in steel and cast iron was done using thermodynamic calculations (FACTSAGE software) and automated SEM/EDS inclusion analysis (ASPEX system). Statistics of non-metallic inclusions (size, shape, composition) were studied in the iron and steel samples collected by quenching after different stages of melt treatment as well as from castings. The suggested methodology of inclusion analysis has the potential to be applied together with adaptive thermal analysis (ATAS) for solving practical problems such as decreasing shrinkage defects in ductile iron.
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Lekakh, S., Richards, V. & Peaslee, K. Thermo-Chemistry of Non-Metallic Inclusions in Ductile Iron. Inter Metalcast 3, 25–37 (2009). https://doi.org/10.1007/BF03355456
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DOI: https://doi.org/10.1007/BF03355456