Sliding of coherent twin boundaries

Zhang-Jie Wang; Qing-Jie Li; Yao Li; Long-Chao Huang; Lei Lu; Ming Dao; Ju Li; Evan Ma; Subra Suresh; Zhi-Wei Shan

doi:10.1038/s41467-017-01234-8

Nature Communications (Oct 2017)

Sliding of coherent twin boundaries

Zhang-Jie Wang,
Qing-Jie Li,
Yao Li,
Long-Chao Huang,
Lei Lu,
Ming Dao,
Ju Li,
Evan Ma,
Subra Suresh,
Zhi-Wei Shan

Affiliations

Zhang-Jie Wang: Center for Advancing Materials Performance from the Nanoscale and Hysitron Applied Research Center in China, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
Qing-Jie Li: Department of Materials Science and Engineering, Johns Hopkins University
Yao Li: Center for Advancing Materials Performance from the Nanoscale and Hysitron Applied Research Center in China, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
Long-Chao Huang: Center for Advancing Materials Performance from the Nanoscale and Hysitron Applied Research Center in China, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
Lei Lu: Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
Ming Dao: Center for Advancing Materials Performance from the Nanoscale and Hysitron Applied Research Center in China, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
Ju Li: Center for Advancing Materials Performance from the Nanoscale and Hysitron Applied Research Center in China, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
Evan Ma: Center for Advancing Materials Performance from the Nanoscale and Hysitron Applied Research Center in China, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
Subra Suresh: Nanyang Technological University
Zhi-Wei Shan: Center for Advancing Materials Performance from the Nanoscale and Hysitron Applied Research Center in China, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University

DOI: https://doi.org/10.1038/s41467-017-01234-8
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 7

Abstract

Read online

Coherent twin boundaries (CTBs) in face-centered cubic metals are usually considered unable to slide at room temperature. Here, the authors use in situ transmission electron microscopy and molecular dynamics to show CTB sliding in copper nanopillars when leading and trailing partial dislocations have similar Schmid factors.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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