• 中文核心期刊
  • CSCD中国科学引文数据库来源期刊
  • 中国科技核心期刊
  • 中国机械工程学会材料分会会刊
Advanced Search
CAO Rui, YAN Ying-jie, LI Guang, DU Wan-sheng, PENG Yun, TIAN Zhi-ling, CHEN Jian-hong. Four-Point Bending Fracture Behaviors at Low Temperatures of A New 980 MPa High Strength Steel[J]. Materials and Mechanical Engineering, 2011, 35(4): 72-75.
Citation: CAO Rui, YAN Ying-jie, LI Guang, DU Wan-sheng, PENG Yun, TIAN Zhi-ling, CHEN Jian-hong. Four-Point Bending Fracture Behaviors at Low Temperatures of A New 980 MPa High Strength Steel[J]. Materials and Mechanical Engineering, 2011, 35(4): 72-75.

Four-Point Bending Fracture Behaviors at Low Temperatures of A New 980 MPa High Strength Steel

More Information
  • Received Date: December 09, 2010
  • Four-point bending tests for the sample with notch at different temperatures (-196-200 ℃) were performed on a new 980 MPa high strength steel. The fracture surface was observed by scanning electron microscopy. The fracture behaviors of the high strength steel were investigated. The results show that with increasing the test temperature, the toughness of the steel gradually increased. It was ductile fracture at -100 ℃ or above, and the toughness was good. The fracture feature transformed from ductile fracture to brittle fracture at below -100 ℃. It was brittle quasi-cleavage fracture at -196 ℃.
  • [1]
    ECHEVERR A, RODRIGUEZ-IBABE J M. Brittle fracture micromechanisms in bainitic and martensitic microstructures in a C-Mn-B steel[J].Scripta Materialia,1999,41(2):131-136.
    [2]
    ZHANG X Z, KNOTT J. The statistical modelling of brittle fracture in homogeneous and heterogeneous steel microstructures[J].Acta Mater,2000,48(9):2135-2146.
    [3]
    TANGUY B, BESSON J, PIQUES R,et al. Ductile to brittle transition of an A508 steel characterized by Charpy impact test: Part II: modeling of the Charpy transition curve[J].Engineering Fracture Mechanics,2005,72(3):49-72.
    [4]
    BHADESHIA H K D, EDMONDS D V. Bainite in silicon steels: new composition-property approach, part 1[J].Met Sci,1983,17:411-419.
    [5]
    BHADESHIA H K D, EDMONDS D V. Bainite in silicon steels: new composition-property approach, part 2[J].Met Sci,1983,17:420-428.
    [6]
    MIIHKINEN V T T, EDMONDS D V. Tensile deformation of two experimental high-strength bainitic low-alloy steels containing silicon[J].Material Science and Technology,1987,3:432-440.
    [7]
    MIIHKINEN V T T, EDMONDS D V. Fracture toughness of two experimental high-strength bainitic low-alloy steels con-taining silicon[J].Material Science and Technology,1987,3:441-449.
    [8]
    闫英杰, 曹睿, 杜挽生, 等.一种新型980 MPa高强钢在不同温度下的拉伸断裂试验[J].材料科学与工程学报, 2009, 27(2): 246-249.
    [9]
    曹睿, 闫英杰, 杜挽生, 等.一种新型980 MPa高强钢的弯曲断裂机理[J].材料科学与工程学报, 2009, 27(5): 696-700.
    [10]
    王国珍.低合金钢细观解理断裂应力σf及断裂模型的研究[D].兰州:甘肃工业大学, 2002.

Catalog

    Article views (4) PDF downloads (0) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return