Dispersoids in Al-Li AA8090 series alloys

Dispersoids in Al-Li AA8090 series alloys

Chemical composition data of Al3Zr-type dispersoids obtained using the EDAX attached to the transmission electron microscopes in three commercial AA8090 series Al–Li alloys demonstrated the incorporation of Ti in these dispersoids. The extrapolation technique led to the composition of dispersoids to...

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Veröffentlicht in:Journal of materials science 1997-06, Vol.32 (12), p.3341-3347
Hauptverfasser: WAHEED, A, LORIMER, G. W
Format: Artikel
Sprache:eng
Schlagworte:
Alloy systems
Aluminum base alloys
Aluminum-lithium alloys
Applied sciences
Casting alloys
Chemical composition
Dispersion
Dispersion hardening metals
Dispersions
Electron microscopes
Exact sciences and technology
Manganese
Materials science
Metals. Metallurgy
Microscopes
Organic chemistry
Powder metallurgy. Composite materials
Production techniques
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Zusammenfassung:Chemical composition data of Al3Zr-type dispersoids obtained using the EDAX attached to the transmission electron microscopes in three commercial AA8090 series Al–Li alloys demonstrated the incorporation of Ti in these dispersoids. The extrapolation technique led to the composition of dispersoids to be Al3(Zr0.92Ti0.08). No dispersoids were found other than Al3Zr-type in these alloys although one of the alloys contained Mn. Appearance of Mn-rich dispersoids in one of the re-cast alloys which contained Mn showed that the solubility of Mn in Al is significantly influenced by the Li concentration in Al–Li alloy systems.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1018648011788