Precipitation of the θ'(Al2Cu) phase in Al-Cu-Ag alloys

Julian Rosalie; Laure Nelly Bourgeois; Barrington Charles Muddle

doi:10.1002/9781118359259.ch52

Precipitation of the θ'(Al₂Cu) phase in Al-Cu-Ag alloys

Julian Rosalie, Laure Nelly Bourgeois, Barrington Charles Muddle

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

6 Citations (Scopus)

Abstract

Precipitation of the ? (Al 2Cu) phase was examined in Al-(1.75-x) at. Cu-x at. Ag alloys. In alloys containing trace Ag the ? precipitates formed T- or cross-shaped arrays of sympathetically-nucleated arrays similar to those reported in binary Al-Cu alloys. However, in alloys with equal atomic levels of copper and silver the ? plates formed at specific sites on dislocation loops alongside pre-existing ? (AlAg 2) precipitates. The dislocation loops appeared to dissociate at these sites in a manner which would provide a stacking fault that was isostructural with the ? precipitate. Energy dispersive X-ray (EDX) mapping showed that the dislocation loops were silver-enriched at the sites where the ? phase eventually precipitated and that a silver atmosphere remained after precipitation of the ? plates.

Original language	English
Title of host publication	Light Metals 2012
Editors	Carlos E Suarez
Place of Publication	Hoboken NJ USA
Publisher	John Wiley & Sons
Pages	307-312
Number of pages	6
ISBN (Print)	9781118291399
DOIs	https://doi.org/10.1002/9781118359259.ch52
Publication status	Published - 2012
Event	Technical Session on Light Metals held at the TMS Annual Meeting 2012 - Orlando, United States of America Duration: 11 Mar 2012 → 15 Mar 2012 https://link.springer.com/book/10.1007/978-3-319-48179-1 (Proceedings)

Conference

Conference	Technical Session on Light Metals held at the TMS Annual Meeting 2012
Abbreviated title	Light Metals 2012
Country/Territory	United States of America
City	Orlando
Period	11/03/12 → 15/03/12
Other	Proceedings of the technical sessions presented by the TMS Aluminum Committee at the TMS 2012 Annual Meeting & Exhibition, Orlando, Florida, USA March 11-15,2012
Internet address	https://link.springer.com/book/10.1007/978-3-319-48179-1 (Proceedings)

Access to Document

10.1002/9781118359259.ch52

6 Citations
1 Conference Paper

Precipitation of the θ'(Al₂Cu) phase in Al-Cu-Ag alloys
Rosalie, J. M., Bourgeois, L. & Muddle, B. C., 2016, Light Metals 2012. Suarez, C. E. (ed.). Springer, p. 307-312 6 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other › peer-review

1 Citation (Scopus)

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Cite this

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title = "Precipitation of the θ'(Al2Cu) phase in Al-Cu-Ag alloys ",

abstract = "Precipitation of the ? (Al 2Cu) phase was examined in Al-(1.75-x) at. Cu-x at. Ag alloys. In alloys containing trace Ag the ? precipitates formed T- or cross-shaped arrays of sympathetically-nucleated arrays similar to those reported in binary Al-Cu alloys. However, in alloys with equal atomic levels of copper and silver the ? plates formed at specific sites on dislocation loops alongside pre-existing ? (AlAg 2) precipitates. The dislocation loops appeared to dissociate at these sites in a manner which would provide a stacking fault that was isostructural with the ? precipitate. Energy dispersive X-ray (EDX) mapping showed that the dislocation loops were silver-enriched at the sites where the ? phase eventually precipitated and that a silver atmosphere remained after precipitation of the ? plates.",

author = "Julian Rosalie and Bourgeois, {Laure Nelly} and Muddle, {Barrington Charles}",

year = "2012",

doi = "10.1002/9781118359259.ch52",

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isbn = "9781118291399",

pages = "307--312",

editor = "Suarez, {Carlos E}",

booktitle = "Light Metals 2012",

publisher = "John Wiley & Sons",

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note = "Technical Session on Light Metals held at the TMS Annual Meeting 2012, Light Metals 2012 ; Conference date: 11-03-2012 Through 15-03-2012",

url = "https://link.springer.com/book/10.1007/978-3-319-48179-1",

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AU - Rosalie, Julian

AU - Bourgeois, Laure Nelly

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N2 - Precipitation of the ? (Al 2Cu) phase was examined in Al-(1.75-x) at. Cu-x at. Ag alloys. In alloys containing trace Ag the ? precipitates formed T- or cross-shaped arrays of sympathetically-nucleated arrays similar to those reported in binary Al-Cu alloys. However, in alloys with equal atomic levels of copper and silver the ? plates formed at specific sites on dislocation loops alongside pre-existing ? (AlAg 2) precipitates. The dislocation loops appeared to dissociate at these sites in a manner which would provide a stacking fault that was isostructural with the ? precipitate. Energy dispersive X-ray (EDX) mapping showed that the dislocation loops were silver-enriched at the sites where the ? phase eventually precipitated and that a silver atmosphere remained after precipitation of the ? plates.

AB - Precipitation of the ? (Al 2Cu) phase was examined in Al-(1.75-x) at. Cu-x at. Ag alloys. In alloys containing trace Ag the ? precipitates formed T- or cross-shaped arrays of sympathetically-nucleated arrays similar to those reported in binary Al-Cu alloys. However, in alloys with equal atomic levels of copper and silver the ? plates formed at specific sites on dislocation loops alongside pre-existing ? (AlAg 2) precipitates. The dislocation loops appeared to dissociate at these sites in a manner which would provide a stacking fault that was isostructural with the ? precipitate. Energy dispersive X-ray (EDX) mapping showed that the dislocation loops were silver-enriched at the sites where the ? phase eventually precipitated and that a silver atmosphere remained after precipitation of the ? plates.

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T2 - Technical Session on Light Metals held at the TMS Annual Meeting 2012

Y2 - 11 March 2012 through 15 March 2012

ER -

Precipitation of the θ'(Al2Cu) phase in Al-Cu-Ag alloys

Abstract

Conference

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Research output