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
  • [31] High temperature creep of polycrystals with randomly oriented grain boundaries
    Weber, H
    Balke, H
    Pompe, W
    COMPUTATIONAL MATERIALS SCIENCE, 1996, 5 (1-3) : 238 - 242
  • [32] STRENGTHENING OR WEAKENING OF POLYCRYSTALS DUE TO PRESENCE OF GRAIN-BOUNDARIES
    ARMSTRONG, RW
    CANADIAN METALLURGICAL QUARTERLY, 1974, 13 (01) : 187 - 202
  • [33] Internal friction behavior of alumina polycrystals with engineered grain boundaries
    Nakagawa, K
    Pezzotti, G
    Ota, K
    Ikuhara, Y
    Yoshida, H
    Sakuma, T
    MATERIALS TRANSACTIONS, 2002, 43 (07) : 1557 - 1560
  • [34] INFLUENCE OF GRAIN AND TWIN BOUNDARIES IN FATIGUE CRACKING
    THOMPSON, AW
    ACTA METALLURGICA, 1972, 20 (09): : 1085 - &
  • [35] An examination of the linkage of cleavage cracks at grain boundaries
    Hughes, GM
    Smith, G
    Crocker, AG
    Flewitt, PEJ
    MATERIALS SCIENCE AND TECHNOLOGY, 2005, 21 (11) : 1268 - 1274
  • [36] Grain boundary mobility and grain growth behavior in polycrystals with faceted wet and dry boundaries
    Yoon, Byung-Kwon
    Choi, Si-Young
    Yamamoto, Takahisa
    Ikuhara, Yuichi
    Kang, Suk-Joong L.
    ACTA MATERIALIA, 2009, 57 (07) : 2128 - 2135
  • [37] Cleavage cracking resistance of large-angle grain boundaries in Fe-3 wt% Si alloy
    Argon, AS
    Qiao, Y
    PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 2002, 82 (17-18): : 3333 - 3347
  • [38] Solute segregation at grain boundaries in polycrystals with dominating mass transport by complexes
    National Science Center, Kharkov Institute of Physics and Technology, 310108 Kharkov, Ukraine
    不详
    不详
    Low Temp. Phys, 2 (160-170):
  • [39] Wetting of stressed grain boundaries in polycrystals and rheological behaviour of resulting materials
    Traskine, Vladimir
    Skvortsova, Zoya
    Barrallier, Laurent
    Volovitch, Polina
    Pertsov, Alexandre
    DIFFUSION IN SOLIDS AND LIQUIDS: MASS DIFFUSION, 2006, 258-260 : 409 - +
  • [40] Modelling of planar interface elastic behaviour Application to grain boundaries in polycrystals
    Gelebart, Lionel
    COMPTES RENDUS MECANIQUE, 2010, 338 (12): : 670 - 674
12345