New role of screw dislocation in twin lamella during deformation: An in situ TEM study at the atomic scale

Zongde Kou; Yanqing Yang; Lixia Yang; Bin Huang; Yanxia Chen; Xian Luo

doi:10.1016/j.msea.2018.05.053

New role of screw dislocation in twin lamella during deformation: An in situ TEM study at the atomic scale

Zongde Kou
, Yanqing Yang
, Lixia Yang
, Bin Huang
, Yanxia Chen
, Xian Luo

材料学院

Northwestern Polytechnical University Xian
Shanghai Jiao Tong University

科研成果: 期刊稿件 › 文章 › 同行评审

8 引用（Scopus）

摘要

Two dynamic processes were revealed in Cu by in situ tensile tests at the atomic scale: a lattice screw dislocation forming by the combination of two twinning dislocations; and two 60° full dislocations evolving from an extended screw dislocation. The results indicate that screw dislocation can trigger the transition of dislocation slip mode by its formation and dissociation, and also nucleate non-screw dislocations.

源语言	英语
页（从-至）	125-129
页数	5
期刊	Materials Science and Engineering: A
卷	729
DOI	https://doi.org/10.1016/j.msea.2018.05.053
出版状态	已出版 - 27 6月 2018

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10.1016/j.msea.2018.05.053

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title = "New role of screw dislocation in twin lamella during deformation: An in situ TEM study at the atomic scale",

abstract = "Two dynamic processes were revealed in Cu by in situ tensile tests at the atomic scale: a lattice screw dislocation forming by the combination of two twinning dislocations; and two 60° full dislocations evolving from an extended screw dislocation. The results indicate that screw dislocation can trigger the transition of dislocation slip mode by its formation and dissociation, and also nucleate non-screw dislocations.",

keywords = "Deformation, In situ HRTEM, Screw dislocation, Slip mode, Twin",

author = "Zongde Kou and Yanqing Yang and Lixia Yang and Bin Huang and Yanxia Chen and Xian Luo",

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year = "2018",

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doi = "10.1016/j.msea.2018.05.053",

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T1 - New role of screw dislocation in twin lamella during deformation

T2 - An in situ TEM study at the atomic scale

AU - Kou, Zongde

AU - Yang, Yanqing

AU - Yang, Lixia

AU - Huang, Bin

AU - Chen, Yanxia

AU - Luo, Xian

PY - 2018/6/27

Y1 - 2018/6/27

N2 - Two dynamic processes were revealed in Cu by in situ tensile tests at the atomic scale: a lattice screw dislocation forming by the combination of two twinning dislocations; and two 60° full dislocations evolving from an extended screw dislocation. The results indicate that screw dislocation can trigger the transition of dislocation slip mode by its formation and dissociation, and also nucleate non-screw dislocations.

AB - Two dynamic processes were revealed in Cu by in situ tensile tests at the atomic scale: a lattice screw dislocation forming by the combination of two twinning dislocations; and two 60° full dislocations evolving from an extended screw dislocation. The results indicate that screw dislocation can trigger the transition of dislocation slip mode by its formation and dissociation, and also nucleate non-screw dislocations.

KW - Deformation

KW - In situ HRTEM

KW - Screw dislocation

KW - Slip mode

KW - Twin

UR - https://www.scopus.com/pages/publications/85047378399

U2 - 10.1016/j.msea.2018.05.053

DO - 10.1016/j.msea.2018.05.053

M3 - 文章

AN - SCOPUS:85047378399

SN - 0921-5093

VL - 729

SP - 125

EP - 129

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

New role of screw dislocation in twin lamella during deformation: An in situ TEM study at the atomic scale

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