| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1622748 | Journal of Alloys and Compounds | 2009 | 9 Pages |
Abstract
The microstructure evolution during ageing treatment at 170 and 190 °C of AA2009/SiC composites, reinforced with 15 vol.% particulates and whiskers, was studied by transmission electron microscopy. Besides θ′ and S′ phases, the typical hardening precipitates on Al–Cu–Mg alloys, it was found the presence of Ω and σ (Al5Cu6Mg2) phases in the matrix. σ phase was only found in the matrix of particulate composite, while Ω phase appeared in both. This phase has not been previously observed in Al matrix composites based on conventional Al–Cu–Mg alloys.
Related Topics
Physical Sciences and Engineering
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Metals and Alloys
Authors
P. Rodrigo, P. Poza, M.V. Utrilla, A. Ureña,