The role of recalcitrant grain boundaries in cleavage cracking in polycrystals

被引：8
|
作者：
Qiao, Y [1 ]
机构：
[1] Univ Akron, Dept Civil Engn, Akron, OH 44325 USA
来源：
JOURNAL OF MATERIALS SCIENCE | 2005年 / 40卷 / 18期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1007/s10853-005-1909-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Recalcitrant grain boundaries offer an important resistance to cleavage crack advance through crack trapping. In this article, this effect is studied based on an energy analysis. It is found that the critical energy release rate is dominated by a single parameter, Q, that collects together factors such as work of separation, grain size, and crack length. For short cracks, the crack trapping effect leads to an increase in fracture resistance by 20-30%. For long cracks, the crack trapping effect is negligible.
引用
收藏
页码：4819 / 4825
页数：7
相关论文
共 50 条
  • [1] The role of recalcitrant grain boundaries in cleavage cracking in polycrystals
    Y. Qiao
    Journal of Materials Science, 2005, 40 : 4819 - 4825
  • [2] Moving grain boundaries in polycrystals
    Brocato, M
    Tamagny, P
    Ehrlacher, A
    MOVING BOUNDARIES VI: COMPUTATIONAL MODELLING OF FREE AND MOVING BOUNDARY PROBLEMS, 2001, 4 : 233 - 242
  • [3] Equation of motion for grain boundaries in polycrystals
    Zhang, Luchan
    Han, Jian
    Srolovitz, David J.
    Xiang, Yang
    NPJ COMPUTATIONAL MATERIALS, 2021, 7 (01)
  • [4] Dislocation impediment by the grain boundaries in polycrystals
    Yinguang Piao
    Khanh Chau Le
    Acta Mechanica, 2021, 232 : 3193 - 3213
  • [5] Dislocation impediment by the grain boundaries in polycrystals
    Piao, Yinguang
    Le, Khanh Chau
    ACTA MECHANICA, 2021, 232 (08) : 3193 - 3213
  • [6] Equation of motion for grain boundaries in polycrystals
    Luchan Zhang
    Jian Han
    David J. Srolovitz
    Yang Xiang
    npj Computational Materials, 7
  • [7] Theory of the elasticity of polycrystals with viscous grain boundaries
    Zener, C
    PHYSICAL REVIEW, 1941, 60 (12): : 906 - 908
  • [8] Optical blasting of polycrystals manipulates grain boundaries
    Kirmani, Ahmad R.
    MRS BULLETIN, 2018, 43 (04) : 253 - 253
  • [9] Optical blasting of polycrystals manipulates grain boundaries
    Ahmad R. Kirmani
    MRS Bulletin, 2018, 43 : 253 - 253
  • [10] Stress transmission in polycrystals with frictionless grain boundaries
    Rodin, G.J.
    Journal of Applied Mechanics, Transactions ASME, 1995, 62 (01): : 1 - 6
12345