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Effects of trace elements on the formation of spheroidal graphite in ductile iron

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Spheroidal graphite was obtained by direct quenching iron melt atfter spheroidization and inoculation procedures. The morphology and the effects of trace elements on the formation of spheroidal graphite were investigated by scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectroscopy. Results indicate that all the graphite fixed by quenching, is nearly spheroidal with a diameter of approximately 20μm. In addition, the SEM image of graphite morphology confirms the screwed growth model of spheroidal graphite. The linear distribution of trace elements shows that the nucleus of spheroidal graphite consists of antimony, cerium, magnesium and sulfur element. Meanwhile, trace elements, such as antimony, cerium and magnesium, enrich around graphite nodule, which facilitates the formation of spheroidal graphite.

Original languageEnglish
Title of host publicationAdvanced Materials
Pages1239-1242
Number of pages4
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011 - Changsha, China
Duration: 28 May 201130 May 2011

Publication series

NameAdvanced Materials Research
Volume239-242
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
Country/TerritoryChina
CityChangsha
Period28/05/1130/05/11

Keywords

  • Ductile iron
  • Graphite morphology
  • Trace element

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