Growth ledges on silver-segregated θ′ (Al2Cu) precipitates

Julian Rosalie, Laure Bourgeois

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

Abstract

The interfacial structure and composition of θ′ (Al2Cu) precipitates in Al-0.9at.%Cu-0.9at.%Ag alloys were examined using high resolution electron microscopy. High angle annular dark field scanning transmission electron microscope (HAADF-STEM) images showed the presence of a silver(Ag)-rich bi-layer on the coherent (100) θ′-Al interfaces of the precipitates (1). Despite the presence of this layer, growth ledges were observed on the θ′ phase and thickening of the precipitates was able to proceed via ledges of step height 0.5c(θ′).

Original languageEnglish
Title of host publicationLight Metals 2013
Subtitle of host publicationProceedings of the Symposia Sponsored by the TMS Aluminum Committee at the TMS 2013 Annual Meeting & Exhibition
EditorsBarry A. Sadler
Place of PublicationCham Switzerland
PublisherSpringer
Pages367-371
Number of pages5
ISBN (Electronic)9783319651361
ISBN (Print)9783319651354
DOIs
Publication statusPublished - 2016
EventTMS Annual Meeting and Exhibition 2013 - Henry B. Gonzalez Convention Center, San Antonio, United States of America
Duration: 3 Mar 20137 Mar 2013
Conference number: 142nd
https://www.tms.org/meetings/annual-13/AM13home.aspx

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

ConferenceTMS Annual Meeting and Exhibition 2013
Abbreviated titleTMS 2013
CountryUnited States of America
CitySan Antonio
Period3/03/137/03/13
Internet address

Keywords

  • Aluminium alloys
  • Interfaces
  • Ledges
  • Precipitation
  • Segregation

Cite this

Rosalie, J., & Bourgeois, L. (2016). Growth ledges on silver-segregated θ′ (Al2Cu) precipitates. In B. A. Sadler (Ed.), Light Metals 2013: Proceedings of the Symposia Sponsored by the TMS Aluminum Committee at the TMS 2013 Annual Meeting & Exhibition (pp. 367-371). (Minerals, Metals and Materials Series). Cham Switzerland: Springer. https://doi.org/10.1007/978-3-319-65136-1_64
Rosalie, Julian ; Bourgeois, Laure. / Growth ledges on silver-segregated θ′ (Al2Cu) precipitates. Light Metals 2013: Proceedings of the Symposia Sponsored by the TMS Aluminum Committee at the TMS 2013 Annual Meeting & Exhibition. editor / Barry A. Sadler. Cham Switzerland : Springer, 2016. pp. 367-371 (Minerals, Metals and Materials Series).
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Rosalie, J & Bourgeois, L 2016, Growth ledges on silver-segregated θ′ (Al2Cu) precipitates. in BA Sadler (ed.), Light Metals 2013: Proceedings of the Symposia Sponsored by the TMS Aluminum Committee at the TMS 2013 Annual Meeting & Exhibition. Minerals, Metals and Materials Series, Springer, Cham Switzerland, pp. 367-371, TMS Annual Meeting and Exhibition 2013, San Antonio, United States of America, 3/03/13. https://doi.org/10.1007/978-3-319-65136-1_64

Growth ledges on silver-segregated θ′ (Al2Cu) precipitates. / Rosalie, Julian; Bourgeois, Laure.

Light Metals 2013: Proceedings of the Symposia Sponsored by the TMS Aluminum Committee at the TMS 2013 Annual Meeting & Exhibition. ed. / Barry A. Sadler. Cham Switzerland : Springer, 2016. p. 367-371 (Minerals, Metals and Materials Series).

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

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AB - The interfacial structure and composition of θ′ (Al2Cu) precipitates in Al-0.9at.%Cu-0.9at.%Ag alloys were examined using high resolution electron microscopy. High angle annular dark field scanning transmission electron microscope (HAADF-STEM) images showed the presence of a silver(Ag)-rich bi-layer on the coherent (100) θ′-Al interfaces of the precipitates (1). Despite the presence of this layer, growth ledges were observed on the θ′ phase and thickening of the precipitates was able to proceed via ledges of step height 0.5c(θ′).

KW - Aluminium alloys

KW - Interfaces

KW - Ledges

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Rosalie J, Bourgeois L. Growth ledges on silver-segregated θ′ (Al2Cu) precipitates. In Sadler BA, editor, Light Metals 2013: Proceedings of the Symposia Sponsored by the TMS Aluminum Committee at the TMS 2013 Annual Meeting & Exhibition. Cham Switzerland: Springer. 2016. p. 367-371. (Minerals, Metals and Materials Series). https://doi.org/10.1007/978-3-319-65136-1_64