Microstructures and La-rich compounds in a Cu-containing hypereutectic Al–Si alloy

In the present study, microstructural variations and compounds with the addition of 3 wt.% La into casting A390 alloy were investigated through optical microscopy, transmission electron microscopy, scanning electron microscopy. Energy dispersive X-ray mapping and point analysis are conducted for pha...

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Bibliographic Details
Published in:Journal of alloys and compounds 2003-05, Vol.354 (1), p.159-164
Main Authors: Yi, Hongkun, Zhang, Di, Sakata, T., Mori, H.
Format: Article
Language:English
Subjects:
Alloys
Condensed matter: structure, mechanical and thermal properties
Electron, ion, and scanning probe microscopy
Exact sciences and technology
Microstructure
Physics
Precipitation
SEM
Structure of solids and liquids
crystallography
TEM
Transmission, reflection and scanning electron microscopy(including ebic)
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Summary:In the present study, microstructural variations and compounds with the addition of 3 wt.% La into casting A390 alloy were investigated through optical microscopy, transmission electron microscopy, scanning electron microscopy. Energy dispersive X-ray mapping and point analysis are conducted for phase identification purposes. The results show that the addition of 3 wt.% La has little modification effect on silicon phases in A390 as expected for the formation of the compounds Al 7Si 7Cu 2La 3.5 and Al 5Mg 8Cu 6Si 6.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(03)00022-7