Creep of the Matrix During Coalescence and Overgrowth of Graphite Precipitates in a High-Silicon Spheroidal Graphite Iron Submitted to Thermal Cycling in the Ferritic Domain

Tito Andriollo, Jacques Lacaze*, Niels Skat Tiedje

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    Thermal cycling of a high-silicon spheroidal graphite cast iron within the ferritic domain leads to coalescence of graphite particles with dendritic protuberances on the largest ones. This phenomenon occurs if there is some dissolution of graphite at the maximum temperature of the thermal cycle. Upon cooling, carbon redeposits in preferred locations, leading to the protuberances. This communication demonstrates that the ferritic matrix around the overgrowths can creep and remain in close contact with graphite.
    Original languageEnglish
    JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
    Volume51A
    Pages (from-to)2685-2688
    ISSN1073-5623
    DOIs
    Publication statusPublished - 2020

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