Interface Reactions of Al and Binary Al-Alloys on Mild Steel Substrates in Controlled Atmosphere

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To meet the requirements of weight-saving and low-cost production of components for future transport vehicles, the concept of multi-material mix is of increasing importance. In this context aluminum-iron compounds produced by means of compound casting are considered to be of particular importance. An essential and critical aspect of such compound castings is the formation of intermetallic phases (IMP) at the Al-Fe interface. Both the nature and the kinetics of potential IMPs are not well understood and require a systematic investigation. In this paper we document the interface formation of pure Al and binary Al-alloys on a mild steel substrate by means of isothermal wetting experiments. Tests were carried out employing the sessile droplet method in a controlled atmosphere. Using pure Al and Al7Si, Al7Cu, and Al7Zn alloys the interface reactions were investigated by quantitative metallography (LOM, SEM/EDX). Special attention was paid to the influence of the alloying elements on the type and sequence of IMPs at the interface.

Info:

Periodical:

Materials Science Forum (Volumes 519-521)

Edited by:

W.J. Poole, M.A. Wells and D.J. Lloyd

Pages:

1157-1162

DOI:

10.4028/www.scientific.net/MSF.519-521.1157

Citation:

W. Fragner et al., "Interface Reactions of Al and Binary Al-Alloys on Mild Steel Substrates in Controlled Atmosphere", Materials Science Forum, Vols. 519-521, pp. 1157-1162, 2006

Online since:

July 2006

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$35.00

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