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Characteristics of compacted graphite cast iron

Murthy, VSR and Seshan, S and Kishore, * (1984) Characteristics of compacted graphite cast iron. In: Transactions of the American Foundrymen's Society, 92 . pp. 373-380.

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Compacted graphite cast iron (CG cast iron) has some advantages over ductile and gray irons in production and use. Cast irons with compacted graphite can be produced either by deliberate undertreatment with nodularizers or by a simultaneous treatment with nodularizers and antinodularizers. Experimental investigations show that repetitive production is possible using either of the above methods. The properties of CG cast irons thus produced were assessed and the mechanical properties correlated with the aspect ratio of graphite. The CG cast irons have mechanical properties, machinability, wear resistance, and corrosion characteristics intermediate to those of gray and ductile irons. The reason for the intermediate behavior of the CG cast irons is explained based on the microstructure and the graphite shape. Using SEM studies, attempts were made to study the morphological and growth behavior of the compacted graphite. It is confirmed that, in CG cast iron, graphite growth takes place perpendicular to the basal plane of graphite.

Item Type: Journal Article
Publication: Transactions of the American Foundrymen's Society
Publisher: American Foundrymen’s Society
Additional Information: Copyright of this article belongs to American Foundrymen’s Society.
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 22 May 2008
Last Modified: 27 Aug 2008 13:23
URI: http://eprints.iisc.ac.in/id/eprint/14032

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