China Foundry
18/2018
10.1007/s41230-018-8166-3
Fundición de hierro, I+D+i, Jacques Lacaze, Jon Sertucha, Tecnologías de fundición
Differential thermal analysis experiments have been performed on samples machined from Y2-blocks cast with different high-silicon spheroidal graphite irons. Depending on magnesium, silicon, cerium and antimony content, the as-cast microstructure showed various levels of chunky graphite in the central part of the blocks. In contrast, the microstructure of the materials after remelting and resolidification during differential thermal analysis consisted of lamellar or compacted graphite. The formation of chunky graphite in the as-cast microstructure is rationalized using an index or silicon equivalent that has been recently suggested. The differences in the microstructures after differential thermal analysis are discussed in terms of available free magnesium. Emphasis is finally put on the striking differences in characteristic size of the microstructures made of compacted graphite as compared to lamellar graphite and chunky graphite. This leads to tentative conclusions about growth of compacted and chunky graphite which would be worthy of further experimental investigations.
Jacques Lacaze (CIRIMAT), Jon Sertucha (AZTERLAN).
High-silicon spheroidal graphite iron, graphite degeneracy, compacted graphite, chunky graphite.
¿Cómo podemos ayudarte?
Mantente informad@ de la actividad de AZTERLAN
Mantente informad@ de la actividad de AZTERLAN
Formamos equipos de trabajo en distintos ámbitos de la metalurgia y los procesos de transformación de metales.
Indícanos los datos de tu trabajo y nos pondremos en contacto contigo lo antes posible.
Comparte tu reto con nuestro equipo. Hablar no puede más que acercarnos un poco más a posibles soluciones.