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DENG Caiyan, MENG Qingyu, WANG Dongpo, GONG Baoming. Influence of maximum fatigue precracking force on CTOD value of DH36 flux-cored wire CO2 protection welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(4): 66-70.
Citation: DENG Caiyan, MENG Qingyu, WANG Dongpo, GONG Baoming. Influence of maximum fatigue precracking force on CTOD value of DH36 flux-cored wire CO2 protection welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(4): 66-70.
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Influence of maximum fatigue precracking force on CTOD value of DH36 flux-cored wire CO2 protection welded joints

  • 1.

    Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin 300072, China

  • 2.

    Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin 300072, China;Xuzhou Construction Machinery Group, Jiangsu Xuzhou Construction Research Institute, Xuzhou 221004, China

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  • Received Date: April 28, 2013
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    • Abstract
  • CTOD tests were carried out for flux-cored gas protection welded joints of DH36 according to Standard BS7448. The effect of fatigue precracking force on the CTOD value was investigated by analyzing the microstructure and fracture surface of the joint and finite element simulation on the process of fatigue precracking. The results show that the maximum fatigue precracking force has a tremendous influence on CTOD value. When the maximum fatigue precracking force was less than the specified value in Standard BS7448, the test process was prone to pop-in phenomenon, and smaller CTOD value occurred. Conversely, when the maximum fatigue precracking force was close to or exceeding the specified value, the CTOD value would be larger. Thus the Standard should be strictly limited to the maximum fatigue precracking force to ensure the reliability of test results.
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  • 王建平,霍立兴,张玉凤,等. pop-in效应对材料断裂韧度的影响及评价[J].机械强度, 2006, 28(2):261-263. Wang Jianping, Huo Lixing, Zhang Yufeng, et al. Influence and assessment of the pop-in effect on material fracture toughness[J]. Journal of Mechanical Strength, 2006, 28(2):261-263.
    BS7448 Part 1& Part 2. Fracture mechanics toughness tests, part 1. Method for determination of KIC, critical CTOD and critical J values of welds in metallic materials[S]. BSI:LSBU Press,1997.
    ISO12135. Metallic materials-Unified method of test for the determination of quasistatic fracture toughness[S]. Internationl Organization for Standardization, 2002.
    王建平,霍立兴,张玉凤,等. EH36钢埋弧焊接头CTOD试验中的突跃效应及评价[J].焊接学报, 2004, 25(5):80-84. Wang Jianping, Huo Lixing, Zhang Yufeng, et al. Pop-in effect and its assessment in CTOD test for submerged-arc welded joint of steel EH36[J]. Transactions of the China Welding Institution, 2004, 25(5):80-84.
    吴世品,王东坡,邓彩艳,等.焊缝CTOD试验中的Pop-in效应及产生原因[J].焊接学报, 2012, 33(4):105-108. Wu Shipin, Wang Dongpo, Deng Caiyan, et al. Investigation on Pop-in phenomenon and its causes in CTOD test for weld metal[J]. Transactions of the China Welding Institution, 2012, 33(4):105-108.
    陈剑虹,王国珍,马杭. C-Mn钢焊缝金属的缺口和裂纹试样的微观断裂行为[J].甘肃工业大学学报, 1991, 17(1):34-40. Chen Jianhong, Wang Gouzhen, Ma Hang. Microscopicfracture behavior of C-Mn steel and weld metals in notched and precracked S-peciments[J]. Journal of Gansu University of Technology, 1991, 17(1):34-40.
    陈剑虹,王国珍. C-Mn钢焊缝金属韧脆转变微观断裂行为[J].甘肃工业大学学报, 1993, 19(3):1-7. Chen Jianhong, Wang Guozhen. Micro-fracture behavior of C-Mn base and weld steel in the brittle-ductile transition temperature region[J]. Journal of Gansu University of Technology, 1993, 19(3):1-7.
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