The effect of temperature and cooling-rate on packcarburized iron

Kumar, Vinay and Hosmani, Santosh S (2011) The effect of temperature and cooling-rate on packcarburized iron. Journal of Metallurgy and Materials Science, 53 (4). pp. 393-404.

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Abstract

The pack-carburizing of pure iron was studied for various temperatures in the range of 600 - 950oC and for various cooling conditions after carburizing. It is observed that at temperatures in the range of 850-950°C , carburized layer is composed of three zones, while the surface microstructure of the specimens carburized at or below 800°C is similar to that of uncarburized iron, and no detectable carburized layer-thickness is observed. In case of carburized-and-quenched specimens, the carburized layer contains martensite of two different morphologies. Among the investigated specimens, the surface hardness is highest (1150 HV0.3) for the specimen 'step-cooled' after carburizing. More carbon uptake in the quenched iron-foils (which were through thickness carburized before cooling) than the furnace cooled foils has indicated the possibility of decarburizing during furnace cooling.

Item Type:Article
Official URL/DOI:http://eprints.nmlindia.org/cgi/users/home?screen=...
Uncontrolled Keywords:Carburizing; Iron, Martensite, Pearlite
Divisions:Metal Extraction and Forming
ID Code:4804
Deposited By:Mr. G Shailendra Kumar
Deposited On:10 Feb 2012 14:15
Last Modified:26 Dec 2012 10:56
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