IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v11y2020i1d10.1038_s41467-020-16351-0.html
   My bibliography  Save this article

Direct observation of dual-step twinning nucleation in hexagonal close-packed crystals

Author

Listed:
  • Yang He

    (Department of Mechanical Engineering and Materials Science, University of Pittsburgh)

  • Bin Li

    (Department of Chemical and Materials Engineering, University of Nevada)

  • Chongmin Wang

    (Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory)

  • Scott X. Mao

    (Department of Mechanical Engineering and Materials Science, University of Pittsburgh)

Abstract

Design and processing of advanced lightweight structural alloys based on magnesium and titanium rely critically on a control over twinning that remains elusive to date and is dependent on an explicit understanding on the twinning nucleation mechanism in hexagonal close-packed (HCP) crystals. Here, by using in-situ high resolution transmission electron microscopy, we directly show a dual-step twinning nucleation mechanism in HCP rhenium nanocrystals. We find that nucleation of the predominant {1 0 −1 2} twinning is initiated by disconnections on the Prismatic│Basal interfaces which establish the lattice correspondence of the twin with a minor deviation from the ideal orientation. Subsequently, the minor deviation is corrected by the formation of coherent twin boundaries through rearrangement of the disconnections on the Prismatic│Basal interface; thereafter, the coherent twin boundaries propagate by twinning dislocations. The findings provide high-resolution direct evidence of the twinning nucleation mechanism in HCP crystals.

Suggested Citation

  • Yang He & Bin Li & Chongmin Wang & Scott X. Mao, 2020. "Direct observation of dual-step twinning nucleation in hexagonal close-packed crystals," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16351-0
    DOI: 10.1038/s41467-020-16351-0
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-020-16351-0
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-020-16351-0?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Yang He & Zhengwu Fang & Chongmin Wang & Guofeng Wang & Scott X. Mao, 2024. "In situ observation of the atomic shuffles during the { $${{11}}\bar{{{2}}}{{1}}$$ 11 2 ¯ 1 } twinning in hexagonal close-packed rhenium," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    2. Meihua Jin & Hiroki Shiwaku & Hikari Tanaka & Takayuki Obita & Sakurako Ohuchi & Yuki Yoshioka & Xiaocen Jin & Kanoh Kondo & Kyota Fujita & Hidenori Homma & Kazuyuki Nakajima & Mineyuki Mizuguchi & Hi, 2021. "Tau activates microglia via the PQBP1-cGAS-STING pathway to promote brain inflammation," Nature Communications, Nature, vol. 12(1), pages 1-22, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16351-0. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.