Cooperative toughening mechanism of nanocrystalline materials by grain rotation and shear-coupled migration of grain boundaries

Jianjun Li; Shaohua Chen

doi:10.1016/j.matlet.2014.01.164

Cooperative toughening mechanism of nanocrystalline materials by grain rotation and shear-coupled migration of grain boundaries

Jianjun Li^*
, Shaohua Chen

^*Corresponding author for this work

Northwestern Polytechnical University Xian
Chinese Academy of Sciences

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A theoretical model is proposed to illustrate the cooperative effect of nano-grain rotation and shear-coupled migration of grain boundaries on toughening of nanocrystalline materials. The toughening mechanism is embodied by an effective stress intensity factor near the tip of a mode I crack. The result shows a possibly effective toughening mechanism in nanocrystalline materials.

Original language	English
Pages (from-to)	174-176
Number of pages	3
Journal	Materials Letters
Volume	121
DOIs	https://doi.org/10.1016/j.matlet.2014.01.164
Publication status	Published - 15 Apr 2014
Externally published	Yes

Keywords

Grain rotation
Nanocrystalline materials
Shear-coupled migration of grain boundaries
Simulation and modeling
Stress intensity factor
Toughening mechanism

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10.1016/j.matlet.2014.01.164

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abstract = "A theoretical model is proposed to illustrate the cooperative effect of nano-grain rotation and shear-coupled migration of grain boundaries on toughening of nanocrystalline materials. The toughening mechanism is embodied by an effective stress intensity factor near the tip of a mode I crack. The result shows a possibly effective toughening mechanism in nanocrystalline materials.",

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author = "Jianjun Li and Shaohua Chen",

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AU - Li, Jianjun

AU - Chen, Shaohua

PY - 2014/4/15

Y1 - 2014/4/15

N2 - A theoretical model is proposed to illustrate the cooperative effect of nano-grain rotation and shear-coupled migration of grain boundaries on toughening of nanocrystalline materials. The toughening mechanism is embodied by an effective stress intensity factor near the tip of a mode I crack. The result shows a possibly effective toughening mechanism in nanocrystalline materials.

AB - A theoretical model is proposed to illustrate the cooperative effect of nano-grain rotation and shear-coupled migration of grain boundaries on toughening of nanocrystalline materials. The toughening mechanism is embodied by an effective stress intensity factor near the tip of a mode I crack. The result shows a possibly effective toughening mechanism in nanocrystalline materials.

KW - Grain rotation

KW - Nanocrystalline materials

KW - Shear-coupled migration of grain boundaries

KW - Simulation and modeling

KW - Stress intensity factor

KW - Toughening mechanism

UR - https://www.scopus.com/pages/publications/84894286368

U2 - 10.1016/j.matlet.2014.01.164

DO - 10.1016/j.matlet.2014.01.164

M3 - Article

AN - SCOPUS:84894286368

SN - 0167-577X

VL - 121

SP - 174

EP - 176

JO - Materials Letters

JF - Materials Letters

ER -

Cooperative toughening mechanism of nanocrystalline materials by grain rotation and shear-coupled migration of grain boundaries

Abstract

Keywords

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