Damage mechanism and fatigue strength prediction of compacted graphite iron with different microstructures

被引：11
作者：
Chen, Y. [1 ,2 ]
Pang, J. C. [1 ]
Li, S. X. [1 ]
Zou, C. L. [1 ]
Zhang, Z. F. [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[2] Zhengzhou Univ, Henan Inst Adv Technol, 97 Wenhua Rd, Zhengzhou 450001, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2022年 / 164卷
基金：
中国国家自然科学基金;
关键词：
Compacted graphite iron; Pearlite content; Fatigue strength; Damage mechanism; ELASTIC-MODULUS; CAST-IRON; DUCTILE; TEMPERATURE; BEHAVIOR; MORPHOLOGY; ELEMENTS; MODEL; SIZE;
D O I：
10.1016/j.ijfatigue.2022.107126
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effects of microstructures on the tensile properties, high-cycle fatigue properties and corresponding damage mechanism of compacted graphite iron (CGI) were investigated. The results show that with the increase of pearlite content, both the tensile strength and fatigue strength show an upward trend. Fatigue cracks usually initiate at the graphite/ferrite interface and gradually propagate into the matrix under the high-frequency cyclic stress. The adjacent cracks bridge to form the main crack, leading to the final fracture. Based on the pearlite content and tensile strength, a new model for predicting the fatigue strength of CGI with high accuracy was proposed.
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收藏
页数：14
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共 43 条
  • [31] Influence of thermal exposure on microstructure evolution and tensile fracture behaviors of compacted graphite iron
    Qiu, Y.
    Pang, J. C.
    Li, S. X.
    Yang, E. N.
    Fu, W. Q.
    Liang, M. X.
    Zhang, Z. F.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 664 : 75 - 85
  • [32] The mechanical and physical properties of compacted graphite iron
    Shao, S
    Dawson, S
    Lampic, M
    [J]. MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, 1998, 29 (08) : 397 - 411
  • [33] Shy YH, 2000, MAT SCI ENG A-STRUCT, V278, P54
  • [34] Fracture Morphologies of Advanced High Strength Steel During Deformation
    Sun, Ying
    Li, Xifeng
    Yu, Xiangyu
    Ge, Delong
    Chen, Jun
    Chen, Jieshi
    [J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2014, 27 (01) : 101 - 106
  • [35] [陶栋 Tao Dong], 2018, [材料热处理学报, Transactions of Materials and Heat Treatment], V39, P83
  • [36] Advanced quantification of the carbide spacing and correlation with dimple size in a high-strength medium carbon martensitic steel
    Tioguem, Frank
    N'guyen, Franck
    Maziere, Matthieu
    Tankoua, Franck
    Galtier, Andre
    Lorenzon, Anne-Francoise Gourgues
    [J]. MATERIALS CHARACTERIZATION, 2020, 167
  • [37] Influence of matrix structure on the fatigue properties of an alloyed ductile iron
    Toktas, Guelcan
    Toktas, Alaaddin
    Tayanc, Mustafa
    [J]. MATERIALS & DESIGN, 2008, 29 (08) : 1600 - 1608
  • [38] Tensile properties and damage mechanisms of compacted graphite iron based on microstructural simulation
    Yang, W. J.
    Pang, J. C.
    Wang, L.
    Wang, S. G.
    Liu, Y. Z.
    Hui, L.
    Li, S. X.
    Zhang, Z. F.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 814
  • [39] Study on thermal fatigue behaviors of two kinds of vermicular graphite cast irons
    Zhang, M. X.
    Pang, J. C.
    Meng, L. J.
    Li, S. X.
    Liu, Q. Y.
    Jiang, A. L.
    Zhang, Z. F.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 814
  • [40] Study on high-cycle fatigue fracture mechanism and strength prediction of RuT450
    Zhang, Mengxiao
    Pang, Jianchao
    Meng, Lingjian
    Li, Shouxin
    Liu, Qingyi
    Jiang, Ailong
    Zhang, Zhefeng
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 821
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