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Materials and DesignVolume 27, Issue 7, 2006, Pages 617-622

The austempering study of alloyed ductile iron(Article)

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  • aInstitute of Nuclear Sciences Vinča, P.O. Box 522, 11001 Belgrade, Serbia
  • bUniversity of Novi Sad, Faculty of Technical Sciences, Novi Sad, Serbia

Abstract

Austempered ductile iron (ADI) proved to be an excellent material as it possesses attractive properties: high strength, ductility and toughness are combined with good wear resistance and machinability. These properties can be achieved upon adequate heat treatment which yields optimum microstructure for a given chemical composition. In this paper an investigation has been conducted on ADI alloyed with 0.45%Cu and austempered in a range of times and temperatures. The microstructure and fracture mode developed throughout these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. It was shown that strength, elongation and impact energy strongly depend on amounts of bainitic ferrite and retained austenite. Based on these results an optimal processing window has been established. © 2004 Elsevier Ltd. All rights reserved.

Author keywords

A. ferrous metals and alloysE. mechanicalF. microstructure

Indexed keywords

Engineering controlled terms:CompositionDuctilityHeat treatmentIron alloysMachinabilityMechanical propertiesMetallographic microstructureOptical microscopyScanning electron microscopyStrength of materialsToughnessWear resistance
Engineering uncontrolled termsAustempered ductile iron (ADI)Austempering temperatureBainitic ferriteImpact energyOptimum microstructureRetained austenite
Engineering main heading:Nodular iron
Fluids engineering descriptors:Iron

Funding details

Funding sponsor Funding number Acronym
Ministry of Science and Environmental Protection1970

  • 1

    Authors are indebted to the Ministry of Science and Environment of the Republic of Serbia for the financial support realized through the Project No. 1970.

  • ISSN: 02641275
  • Source Type: Journal
  • Original language: English
  • DOI: 10.1016/j.matdes.2004.11.028
  • Document Type: Article
  • Publisher: Elsevier Ltd

  Erić, O.; Institute of Nuclear Sciences Vinča, P.O. Box 522, Serbia;
© Copyright 2019 Elsevier B.V., All rights reserved.

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