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Electron beam surface melting of model 1200 Al alloys

Allen, CM and Kumar, S and Cama, H and O'Reilly, KAQ and Carroll, L (2001) Electron beam surface melting of model 1200 Al alloys. In: Materials Science and Engineering: A, 304-6 . pp. 604-607.

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Official URL: http://dx.doi.org/10.1016/S0921-5093(00)01543-4

Abstract

Electron beam surface melting has been used to characterise the phase content formed in a number of model 1200 series Al alloys with increasing solidification velocity in the range 2–50 mm s−1, typical of that experienced during continuous strip casting. Phases were extracted from the Al matrix and analysed by X-ray diffraction. A qualitative solidification microstructure selection map has been produced, showing that, for a given Fe content of 0.55 wt.%: with increasing solidification velocity the metastable aluminides FeAl6 and FeAlm displace equilibrium Fe4Al13 at Si contents <not, vert, similar0.15 wt.%, and that α-AlFeSi displaces these Fe aluminides at Si contents >0.15 wt.%, and that α-AlFeSi is an equilibrium phase at a Si content ≥0.50 wt.%.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Electron beam surface melting;1xxx Al alloys;Phase selection.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 09 Nov 2011 09:44
Last Modified: 09 Nov 2011 09:44
URI: http://eprints.iisc.ernet.in/id/eprint/39543

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