The Effect of Iron Content on the Iron-Containing Intermetallic Phases in a Cast 6060 Aluminum Alloy

The effect of iron content, ranging from 0.1 to 0.5 wt pct, on the formation of Fe-containing intermetallic phases in a cast 6060 aluminum alloy was investigated. Various characterization techniques, including optical microscopy, scanning electron microscopy (SEM), electron backscatter diffraction (...

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Bibliographic Details
Published in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2011-07, Vol.42 (7), p.1737-1749
Main Authors: Sweet, L., Zhu, S. M., Gao, S. X., Taylor, J. A., Easton, M. A.
Format: Article
Language:English
Subjects:
Aluminum alloys
Applied sciences
Characterization and Evaluation of Materials
Chemistry and Materials Science
Exact sciences and technology
Iron
Materials Science
Metallic Materials
Metallurgy
Metals. Metallurgy
Nanotechnology
Structural Materials
Surfaces and Interfaces
Thin Films
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Summary:The effect of iron content, ranging from 0.1 to 0.5 wt pct, on the formation of Fe-containing intermetallic phases in a cast 6060 aluminum alloy was investigated. Various characterization techniques, including optical microscopy, scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM) were used to examine the identity, morphology, and prevalence of the Fe-Al and Fe-Al-Si intermetallic phases. The predominant phase is found to be β -Al 5 FeSi at lower Fe levels, but this is replaced by α -AlFeSi (bcc structure) with increasing Fe content. The Fe containing intermetallic phases observed are compared to those predicted using the Scheil module of THERMO-CALC software, and the similarities and discrepancies are discussed.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-010-0595-6