Effect of cooling rate on microstructure and mechanical properties of gray cast iron

MM Jabbari Behnam, P Davami, N Varahram

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper presents the results obtained and the deductions made from a series of microstructural studies and mechanical tests involving gray cast iron which was sand cast using a variety of modules. The effect of cooling rate on the primary dendrite arm spacing (DAS), secondary dendrite arm spacing (SDAS), thickness of ferrite–cementite layer (λe) and the hardness (HB) were evaluated. Results show that the both DAS and SDAS and also λe are highly dependent on the cooling rate, and they decreases as the cooling rate increases. More attempts were also done to correlate the HB with DAS, SDAS and λe. It was found that HB increases as DAS, SDAS and λe decreases.
    Original languageEnglish
    Pages (from-to)583-588
    Number of pages6
    JournalMaterials Science and Engineering: A
    Volume528
    Issue number2
    Publication statusPublished - 2010

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