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

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
ISSN1073-5623
DOIs
Publication statusAccepted/In press - 2020

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