Volume 37 Issue 4
Aug.  2022
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GONG Xuhui, GAO Zhenpeng, NIU Jiajia, MA Qian, FU Anxin. Experimental Investigation on Crack Arrest Property of Q500qE Bridge Steel[J]. Development and Application of Materials, 2022, 37(4): 1-4.
Citation: GONG Xuhui, GAO Zhenpeng, NIU Jiajia, MA Qian, FU Anxin. Experimental Investigation on Crack Arrest Property of Q500qE Bridge Steel[J]. Development and Application of Materials, 2022, 37(4): 1-4.
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Experimental Investigation on Crack Arrest Property of Q500qE Bridge Steel

  • 1. Luoyang Ship Material Research Institute, Luoyang 471023, China;

  • 2. Henan Key Laboratory of Technology and Application of Structural Materials for Ships and Marine Equipment, Luoyang 471023, China

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  • Received Date: January 13, 2022
  • Available Online: September 12, 2022
    Graphical Abstract
    • Abstract
  • Temperature-gradient double tension test, drop weight test and tensile test with standard circular cross-section specimens are conducted on Q500qE high-strength bridge steels. Crack arrest temperature CAT, nil-ductility transition temperature TNDT, and yield strength Rel are obtained. A correlation formula is proposed to describe relationship between CAT, TNDT, Rel and plate thickness t. The Deviation between the crack arrest temperature calculated by the proposed formula and that tested by double tension test is within ±5℃, indicating the validity of the proposed formula on describing correlation between crack arrest temperature, nil-ductility transition temperature, yield strength and plate thickness.
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    • References (5)
  • [1]
    闫志刚,赵欣欣,徐向军.沪通长江大桥Q500qE钢的适用性研究[J].中国铁道科学,2017,38(3):40-46.
    [2]
    田越.Q500qE高性能桥梁钢防断性能试验研究[J].桥梁建设,2016,46(1):65-69.
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    武凤娟,程丙贵,曲锦波.Q500qE桥梁钢焊接接头的低温断裂韧性[J].上海金属,2019,41(5):1-7.
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    杨颖,张哲,侯华兴,等.不同屈强比Q500qE桥梁钢的疲劳裂纹扩展速率[J].金属热处理,2018,43(7):229-232.
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    UR W31-2019.Requirements for use of extremely t-hick steel plates[S].
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