Generation of Nanocracks at Deformation Twins in Nanomaterials

I. A. Ovid'ko; A. G. Sheinerman

doi:10.1080/21663831.2013.814091

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Generation of Nanocracks at Deformation Twins in Nanomaterials

Original Reports | 更新时间：2026-08-19

- Generation of Nanocracks at Deformation Twins in Nanomaterials
- Generation of Nanocracks at Deformation Twins in Nanomaterials
- 材料研究快报（英文） 2013年1卷第3期页码：168-173
- 作者机构：
  
  1. Institute of Problems of Mechanical Engineering Russian Academy of Sciences Bolshoj 61 Vasilievskii Ostrov St. Petersburg Russia,199178
  2. . Petersburg State Polytechical University St. Petersburg,St
  3. Department of Mathematics and Mechanics St. Petersburg State University St. Petersburg Russia,198504
  4. Institute of Problems of Mechanical Engineering Russian Academy of Sciences Bolshoj 61 Vasilievskii Ostrov St. Petersburg
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2013.814091
  中图分类号：
- 网络首发：2013-06-25，
  
  纸质出版：2013
- 稿件说明：
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I. A. Ovid'ko, A. G. Sheinerman. Generation of Nanocracks at Deformation Twins in Nanomaterials[J]. 材料研究快报（英文）, 2013,1(3):168-173.

I. A. Ovid'ko, A. G. Sheinerman. Generation of Nanocracks at Deformation Twins in Nanomaterials[J]. Materials Research Letters, 2013, 1(3): 168-173.
I. A. Ovid'ko, A. G. Sheinerman. Generation of Nanocracks at Deformation Twins in Nanomaterials[J]. 材料研究快报（英文）, 2013,1(3):168-173. DOI： 10.1080/21663831.2013.814091.

I. A. Ovid'ko, A. G. Sheinerman. Generation of Nanocracks at Deformation Twins in Nanomaterials[J]. Materials Research Letters, 2013, 1(3): 168-173. DOI： 10.1080/21663831.2013.814091.

摘要

Abstract

The formation of cracks at nanoscale deformation twins stopped by grain boundaries (GBs) is theoretically described as a new fracture mode in nanocrystalline and ultrafine-grained materials. It is noted that dipoles of partial wedge disclinations are formed at GBs

where they stop deformation twins and create high local stresses capable of initiating crack generation. Within this scenario

the critical parameters for crack generation at deformation twins stopped by GBs are revealed. The results of the theoretical analysis explain the corresponding data of experiments and computer simulations and predict novel specific features of the crack formation in deformed nanomaterials.

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相关机构

a School of Materials Science and Engineering Central South University

b Henan Key Laboratory of Advanced Conductor Materials Institute of Materials Henan Academy of Sciences

a School of Materials Science and Engineering Central South University Changsha People’s Republic of China

a Key Laboratory for Light-Weight Materials Nanjing Tech University

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