Grain rotation dependent fracture toughness of nanocrystalline materials

被引：16
|
作者：
Liu, Yingguang [1 ]
Zhou, Jianqiu [1 ,2 ]
Shen, T. D. [3 ,4 ]
Hui, David [5 ]
机构：
[1] Nanjing Univ Technol, Dept Mech Engn, Nanjing 210009, Jiangsu, Peoples R China
[2] Wuhan Inst Technol, Dept Mech Engn, Wuhan 430070, Hubei, Peoples R China
[3] Nanjing Univ Technol, High Tech Res Inst, Nanjing 210009, Jiangsu, Peoples R China
[4] Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
[5] Univ New Orleans, Dept Mech Engn, New Orleans, LA 70148 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 25-26期
基金：
中国国家自然科学基金;
关键词：
Nanocrystalline materials; Rotational deformation; Crack intensity factors; Disclinations; MECHANICAL-BEHAVIOR; METALS; DEFORMATION;
D O I：
10.1016/j.msea.2011.06.035
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A grain size dependent theoretical model is developed to describe the effect of special rotational deformation (SRD) on crack growth in deformed nanocrystalline (nc) materials. The SRD is driven by the stress concentration near the crack tip, and it serves as a toughening mechanism by releases part of the local stresses. The dependence of critical crack intensity factors on grain size was calculated. It was demonstrated that the SRD leads to an increase of critical crack intensity factors by 10-50%. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：7684 / 7687
页数：4
相关论文
共 50 条
  • [1] Grain size dependent fracture toughness of nanocrystalline materials
    Liu, Yingguang
    Zhou, Jianqiu
    Wang, Lu
    Zhang, Shu
    Wang, Ying
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (13-14): : 4615 - 4619
  • [2] Effect of Grain Boundary Migration on Fracture Toughness of Nanocrystalline Materials
    Morozov, N. F.
    Ovid'ko, I. A.
    Sheinerman, A. G.
    Aifantis, E. C.
    MATERIALS PHYSICS AND MECHANICS, 2009, 8 (02): : 155 - 164
  • [3] Effect of Grain Size on the Fracture Toughness of Bimodal Nanocrystalline Materials
    Liu Yingguang
    Peng Xiulei
    Zhu Xiaoyan
    RARE METAL MATERIALS AND ENGINEERING, 2015, 44 (11) : 2798 - 2802
  • [4] Effect of grain size on the fracture toughness of bimodal nanocrystalline materials
    School of Energy and Power Engineering, North China Electric Power University, Baoding
    071003, China
    Xiyou Jinshu Cailiao Yu Gongcheng, 11 (2798-2802):
  • [5] Special rotational deformation and grain size effect on fracture toughness of nanocrystalline materials
    Feng, H.
    Fang, Q. H.
    Zhang, L. C.
    Liu, Y. W.
    INTERNATIONAL JOURNAL OF PLASTICITY, 2013, 42 : 50 - 64
  • [6] ACCOMMODATION OF GRAIN BOUNDARY SLIDING AND FRACTURE TOUGHNESS ENHANCEMENT IN DEFORMED NANOCRYSTALLINE MATERIALS
    Bobylev, S. V.
    Ovid'ko, I. A.
    MATERIALS PHYSICS AND MECHANICS, 2016, 29 (01): : 43 - 70
  • [7] Effect of grain size on the fracture toughness of nanocrystalline FeMoSiB
    Gan, Y
    Zhou, BL
    SCRIPTA MATERIALIA, 2001, 45 (06) : 625 - 630
  • [8] Grain rotation dependent non-homogeneous deformation behavior in nanocrystalline materials
    Li, Xinbo
    Zhou, Jianqiu
    Zhu, Rongtao
    Liu, Yingguang
    Jiang, Hua
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (21-22): : 5677 - 5685
  • [9] Effects of ultrafine nanograins on the fracture toughness of nanocrystalline materials
    Yingguang Liu
    Jianqiu Zhou
    Tongde Shen
    David Hui
    Journal of Materials Research, 2011, 26 : 1734 - 1741
  • [10] Influence of grain boundary sliding on fracture toughness of nanocrystalline ceramics
    Ovid'ko, I. A.
    Skiba, N. V.
    Sheinerman, A. G.
    PHYSICS OF THE SOLID STATE, 2008, 50 (07) : 1261 - 1265
12345