Ultrahigh-carbon "wootz' from Crucible Carburization of Molten Iron: Hypereutectoid Steel from "Tamil Nadu Process" at Mel-siruvalur

Srinivasan, Sharada (2017) Ultrahigh-carbon "wootz' from Crucible Carburization of Molten Iron: Hypereutectoid Steel from "Tamil Nadu Process" at Mel-siruvalur. Materials and Manufacturing Processes.

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    Abstract: As European and Mediterranean accounts indicate, India has been famed for the production of steel, apparently made by crucible processes. Late medieval traveler’s accounts record the making of “wootz” steel in several places in southern India. This material was used for the fabled Damascus swords, which were later found to be of ultrahigh-carbon steel. Whereas studies on Asian crucible steel making from India, Central Asia and Sri Lanka have discussed various processes ranging from co-fusion of cast iron and wrought iron to solid-state carburization of wrought iron, it has been difficult to find clear evidence relating to an end product of ultrahigh-carbon steel. In this light, the archeometallurgical evidence from Mel-siruvalur in Tamil Nadu, presented in this paper, is significant in that it shows unmistakable remnants in crucibles of ultrahigh-carbon, hyper-eutectoid steel, with a likely production mechanism of molten carburization of wrought iron to steel. The favorable comparison with ultrahigh-carbon steel finds dated to early historic or megalithic times in Tamil Nadu and southern India also suggest that this method of crucible steel manufacture, which may be described as the “Tamil Nadu process”, might have been earlier or more archaic than the co-fusion process.
    Item Type: Article
    Keywords: Carburisation, crucible steel, Damascus blades, hypereutectoid steel, megalithic, Mel-siruvalur, Tamil Nadu process, ukku, ultra-high carbon, wootz steel, wrought iron
    Subjects: School of Humanities > Archaeometallurgy
    Programmes > Heritage Science and Society Programme
    Divisions: Schools > Humanities
    Depositing User: Unnamed user with email hamsa.kalyani@gmail.com
    Date Deposited: 23 Mar 2017 10:19
    Last Modified: 23 Mar 2017 10:19
    URI: http://eprints.nias.res.in/id/eprint/1258

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