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LIU Chang, DENG Caiyan, WANG Sheng, GONG Baoming. Critical fracture toughness of weld metal structure in submerged arc welding of EH36 steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(3): 107-110. DOI: 10.12073/j.hjxb.2019400081
Citation: LIU Chang, DENG Caiyan, WANG Sheng, GONG Baoming. Critical fracture toughness of weld metal structure in submerged arc welding of EH36 steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(3): 107-110. DOI: 10.12073/j.hjxb.2019400081
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Critical fracture toughness of weld metal structure in submerged arc welding of EH36 steel

  • 1. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China;

  • 2. Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300072, China;

  • 3. Chiwan Sembawang Engineering Co., Ltd., Shenzhen 518068, China

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  • Received Date: December 21, 2017
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    • Abstract
  • SENT (Single Notched Tensile) specimen was used to study the critical fracture toughness of acicular ferrite (AF) and proeutectoid ferrite (PF) in the EH36 submerged arc welding weld metal. The results showed that the fracture toughness of AF is higher than that of PF. The main reason is that the AF has a high density of dislocation, crack blunting occurs due to plastic deformation under loading. In contrast, PF, whose dislocation density is small, is relatively pure and uniform. The heterogeneity of microstructures lead to a great dispersion of the fracture toughness of the weld metal, which is mainly due to the different fracture toughness and heterogeneous distribution of microstructures in crack tip.
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  • Zuo Bo, Zhang Yufeng, Huo Lixing, et al. Fracture toughness of large thickness weld joint in offshore platform[J]. Transactions of the China Welding Institution, 2004, 25(6): 66 − 68, 81
    左 波, 张玉凤, 霍立兴, 等. 海洋平台大厚度焊接接头断裂韧度[J]. 焊接学报, 2004, 25(6): 66 − 68

    , 81
    贾安东. 焊接结构与生产(第2版)[M]. 北京: 机械工业出版社, 2007.
    Wu Haili, Jia Guoqing, An Chunxiang. Experimental study on fracture toughness of multilayer weld joint based on microstructure[J]. Journal of Mechanical Strength, 2015, 37(1): 58 − 64
    Guo Zhen, Wen Yonghong, Hu Shuiping, et al. The influence of structure type for acicular ferrite steel[J]. Material Development and Application, 2007, 22(6): 5 − 8.
    吴海利, 贾国庆, 安春香. 基于显微组织的多层焊接接头断裂韧性试验研究[J]. 机械强度, 2015, 37(1): 58 − 64
    Huang Y, Zhou W. Effects of crack front curvature on J-R curve testing using clamped SE(T) specimens of homogeneous materials[J]. International Journal of Pressure Vessels and Piping, 2015, 134: 112 − 127.
    ASTM STP 601, Sumpter J D G, Turner C E. Method for laboratory determination of Jc[S]. Philadelphia: American Society for Testing Materials, 1976.
    DNV-RP-F108, Veritas D N. Fracture control for pipeline installation methods introducing cyclic plastic strain[S]. Olso: Det Norske Veritas, 2006.
    Tyson W R, Shen G, Gianetto J A, et al. Development of a low-constraint SE(T) toughness test[J]. Key Engineering Materials, 2011, 488–489: 126 − 129.
    郭 振, 温永红, 胡水平, 等. 针状铁素体钢的组织类型及对性能的影响[J]. 材料开发与应用, 2007, 22(6): 5 − 8
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