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Metal mould reactions during casting of titanium in zircon sand moulds

Saha, RL and Jacob, KT and Misra, RDK and Nandy, TK (1990) Metal mould reactions during casting of titanium in zircon sand moulds. In: Transactions of the American Foundrymen's Society, 98 . pp. 253-260.

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Metal-mold reaction during Ti casting in zircon sand molds has been studied using scanning electron microscope, energy and wave length dispersive analysis of X-rays, X-ray diffraction, microhardness measurements, and chemical analysis. Experimental results suggest that oxides from the mold are not fully leached out by liquid Ti, but oxygen is preferentially transferred to liquid Ti, leaving behind metallic constituents in the mold as lower oxides or intermetallics of Ti. The electron microprobe analysis has revealed the depth profile of contaminants from the mold into the cast Ti metal. The elements Si, Zr and O were found to have diffused to a considerable distance within the Ti metals. A possible mechanism has now been evolved in regard to the reactions that occur during casting of Ti in zircon sand molds.

Item Type: Journal Article
Publication: Transactions of the American Foundrymen's Society
Publisher: American Foundry Society
Additional Information: Copyright of this article belongs to American Foundry Society.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 01 Mar 2012 06:39
Last Modified: 01 Mar 2012 06:39
URI: http://eprints.iisc.ac.in/id/eprint/42662

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