journal article·2020-09

In-situ X-ray radiography of primary Fe-rich intermetallic compound formation

Shikang Feng, Enzo Liotti, Andrew Lui, Matthew D. Wilson, Thomas Connolley, Ragnvald H. Mathiesen, Patrick S. Grant

Acta Materialia· Volume 196
Publisher page

Abstract

Abstract The formation of primary Fe-rich intermetallic compound crystals and the effect of TiB2 and TiC inoculation during solidification of a hypereutectic Al-Fe alloy has been investigated. Both horizontal, near isothermal conditions and vertical, directional thermal gradient conditions were studied using laboratory and synchrotron X-ray radiography. TiB2 and TiC inoculation enhanced formation of Fe-rich intermetallics under all experimental conditions. Near isothermal solidification resulted in the highest intermetallic number density and average formation rate, whilst increasing the thermal gradient reduced both. A model for intermetallic crystal formation is proposed to explain the effect of thermal gradient and cooling rate on the intermetallic number density and average formation rate.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Aluminum Alloy Microstructure Properties · Solidification and crystal growth phenomena · Intermetallics and Advanced Alloy Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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