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Title: Study of microstructure of thick wall ductile iron castings
Authors: Swain, S K
Sen, S
Keywords: Microstructure
Spheroidal graphite iron
Manufacturing process
Issue Date: Jun-2011
Publisher: National Metallurgical Laboratory
Citation: Journal of Metallurgy and Materials Science, Vol. 53, No. 2, April-June 2011, pp. 133-137
Abstract: Ductile Iron castings with section thickness 60mm, 70mm & 80mm were produced using manufacturing process in which the chemical composition was adjusted to guarantee the formation of spheroidal graphite during solidification. Simultaneously other parameters like carbon equivalent, tapping temperature, inoculation and magnesium residuals were monitored. Microstructure and its constituents of these thick wall castings were characterized using an image analyzer. Matrix structure and graphite forms were investigated as a function of section thickness. Pearlite content, nodule count and nodularity decreases with increasing section thickness where as nodule size increases.
Description: Copyright for this paper belongs to National Metallurgical Laboratory, Jamshedpur
ISSN: 0972-4257
Appears in Collections:Journal Articles

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