Effects of reinforcement morphology on the fatigue and fracture behavior of MoSi2/Nb composites

被引：60
|
作者：
Soboyejo, WO [1 ]
Ye, F [1 ]
Chen, LC [1 ]
Bahtishi, N [1 ]
Schwartz, DS [1 ]
Lederich, RJ [1 ]
机构：
[1] MCDONNELL DOUGLAS CORP, ST LOUIS, MO 63166 USA
来源：
ACTA MATERIALIA | 1996年 / 44卷 / 05期
关键词：
D O I：
10.1016/1359-6454(95)00272-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The results of a systematic study of the effects of reinforcement morphology on the fatigue and fracture behavior of MoSi2/Nb composites are discussed. These include experimental and analytical results obtained from studies of crack growth and crack-tip shielding mechanisms in composites reinforced with Nb particles, fibers and laminae. The crack-tip shielding contributions from crack bridging and crack-tip blunting in fiber-reinforced and laminated composites are analyzed using micromechanics models. Similarly, the toughening contributions from deflection by continuous tilting and twisting of cracks around the layered interfaces in particulate-reinforced composites are also assessed using fracture mechanics models. Linear superposition concepts are then used to obtain predictions of the overall toughening due to the different crack-tip shielding mechanisms. The paper highlights the need to control reinforcement morphology in the design of composites with improved fatigue and fracture resistance.
引用
收藏
页码：2027 / 2041
页数：15
相关论文
共 50 条
  • [31] TOUGHENING OF MOSI2 WITH A DUCTILE (NIOBIUM) REINFORCEMENT
    LU, TC
    EVANS, AG
    HECHT, RJ
    MEHRABIAN, R
    ACTA METALLURGICA ET MATERIALIA, 1991, 39 (08): : 1853 - 1862
  • [32] Study of the oxidation behavior of MoSi2/SiC composites at 1300°C
    College of Materials Science and Engineering, Hunan Univ, Changsha 410082, China
    Hunan Daxue Xuebao, 2006, 6 (94-97):
  • [33] Preparation of SiC/MoSi2 composites by mechanical alloying and its fracture properties
    Wu, Hsin-Ming
    Hu, Chia-Jung
    Chou, Ya-Hui
    THERMEC 2006, PTS 1-5, 2007, 539-543 : 1047 - +
  • [34] Effects of SiC on Oxidation Behavior of ZrB2-Based Composites with MoSi2 and SiC Additives
    Guo, Shuqi
    HIGH-PERFORMANCE CERAMICS VIII, 2014, 602-603 : 457 - 462
  • [35] Fracture and mechanical properties of MoSi2 and MoSi2+SiC
    Dusza, J
    Kromp, K
    ADVANCES IN FRACTURE AND DAMAGE MECHANICS, 2003, 251-2 : 13 - 18
  • [36] Fracture and mechanical properties of MoSi2 and MoSi2+SiC
    Dusza, J.
    Hvizdos, P.
    KOVOVE MATERIALY-METALLIC MATERIALS, 2006, 44 (05): : 251 - 258
  • [37] Fracture toughness and DBTT of MoB particle-reinforced MoSi2 composites
    Xiong, Z
    Wang, G
    Jiang, W
    HIGH-PERFORMANCE CERAMICS III, PTS 1 AND 2, 2005, 280-283 : 1471 - 1474
  • [38] Impact fracture characteristics on fabricating process of Nb/MoSi2 laminate composite (I)
    Sang-Pill Lee
    Han-Ki Yoon
    KSME International Journal, 2000, 14 : 823 - 829
  • [39] Impact fracture characteristics on fabricating process of Nb/MoSi2 laminate composite (I)
    Lee, SP
    Yoon, HK
    KSME INTERNATIONAL JOURNAL, 2000, 14 (08): : 823 - 829
  • [40] Bridge toughening enhancement in double-notched MoSi2/Nb model composites
    Pickard, SM
    Ghosh, AK
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (04): : 909 - 921
12345