Physics – Condensed Matter – Materials Science
Scientific paper
2012-03-02
Philosophical Magazine,89:25,2195-2211,(2009)
Physics
Condensed Matter
Materials Science
Pre-print; 15 pages, 9 figures
Scientific paper
10.1080/14786430903066959
The precipitation microstructure of the \gamma' (AlAg2) intermetallic phase has been examined in aluminium-silver-copper alloys. The microstructure developed in an Al-0.90at.%Ag-0.90at.%Cu alloy was significantly different from that reported for binary Al-Ag alloys. The orientation relationship between the matrix and precipitate was unchanged; however, the \gamma' phase formed as aggregates with a two-dimensional open assemblies. Each such assembly contained two variants of the \gamma' phase alternately arranged to form a faceted elliptical unit. The \theta' (Al2Cu) phase formed on these assemblies after further ageing. The faceted elliptical assembly morphology has not been previously reported for the \gamma' precipitate. The change in precipitation behaviour was attributed to copper modifying the as-quenched defect structure of the matrix. This precipitation morphology clarifies earlier observations on the precipitate number density and mechanical properties of aluminium-silver-copper alloys.
Bourgeois Laure
Muddle Barrington C.
Rosalie Julian M.
No associations
LandOfFree
Precipitate assemblies formed on dislocation loops in aluminium-silver-copper alloys does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Precipitate assemblies formed on dislocation loops in aluminium-silver-copper alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precipitate assemblies formed on dislocation loops in aluminium-silver-copper alloys will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-166053