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Effect of Silicon on the Metastable Eutectic Temperature of Fe–C–Si Alloys

  • Argitalpena

    Metallurgical and Materials Transactions B

  • Argitaratze data

    01/2023

  • DOI

    10.1007/s11663-022-02715-y

An attempt has been made to establish experimentally the temperature along the metastable eutectic in the Fe–C–Si system, down to the invariant three-phase eutectic involving austenite, cementite, and an iron silico-carbide. This was carried out by standard thermal analysis using cups with a coating rich in tellurium that is known to impede graphite growth. It turned out that evaluating the metastable temperature is possible up to a silicon contents of 3.8 wt pct, beyond which the driving force for graphite growth becomes so high that the development of stable eutectic cells can no more be hindered. This is quite unfortunate for melt control on the foundry floor but triggers further study for understanding and describing graphite shape in cast irons.

Autoreak:

Urko de la Torre, Jon Sertucha, Anna Regordosa, Jacques Lacaze

Keyword-ak:

cast iron, graphite formation, eutectic temperature.

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Jarri kontaktuan Xabierrekin

Jarri kontaktuan Maider Muro-rekin.

Jarri kontaktuan Dr. Urko de la Torre-rekin.

Jarri kontaktuan Anna Regordosa-rekin

Jarri kontaktuan Dr. Rodolfo González-Martínez-ekin.

Jarri kontaktuan Ander Areitioaurtena-rekin.

Jarri kontaktuan David Aristondo-rekin.

Jarri kontaktuan Juan J. Bravo-rekin.

Jarri kontaktuan David Garcia-rekin.

Jarri kontaktuan Jose Ramon-rekin.

Jarri kontaktuan Oihana-rekin.

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