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

Masoud Jabbari, P. Davami, N. Varahram

Research output: Contribution to journalJournal articlepeer-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
JournalMaterials Science and Engineering: A - Structural Materials: Properties, Microstructure and Processing
Volume528
Issue number2
Pages (from-to)583-588
ISSN0921-5093
DOIs
Publication statusPublished - 2010
Externally publishedYes

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