Advanced Search
ZHANG Nan1,2, TIAN Zhiling2, ZHANG Xi1, YANG Jianwei1. Fracture toughness of CGHAZ of Q690CFD high-strength steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 26-31，36. DOI: 10.12073/j.hjxb.2018390007
Citation: ZHANG Nan1,2, TIAN Zhiling2, ZHANG Xi1, YANG Jianwei1. Fracture toughness of CGHAZ of Q690CFD high-strength steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 26-31，36. DOI: 10.12073/j.hjxb.2018390007
shu

Fracture toughness of CGHAZ of Q690CFD high-strength steel

More Information
  • Received Date: September 19, 2016
    Graphical Abstract
    • Abstract
  • The coarse grain heat affect zone (CGHAZ) of Q690CFD high-strength steel with two different compositions was simulated with Gleeble-1500 test machine to investigate its impact toughness, and the values of CTOD were measured by a series of three point bending tests. The fracture behavior of crack tip in CGHAZ was analyzed based on the fractography of CTOD samples with SEM. The results show that the variation trend of fracture toughness (critical CTOD valuesδm/c/u(8) and instrumented extension energy) declined with the decrease of temperature. The ductile-brittle transition temperature, fitted by Boltzmann function, was accordant with the variation tendency of instrumented impact. The path of crack propagation in CGHAZ of two different Q690CFD steels was determined by the position of high angle boundaries (≥15°) and M/A islands in metastructure nearby the fracture zone.
    • FullText(HTML)
    • References (1)
  • 霍立兴. 焊接结构的断裂行为及评定[M]. 北京: 机械工业出版社, 2000.[2] 杨新岐, 王东坡, 李小巍, 等. 海洋石油平台焊接接头大型CTOD试验[J]. 焊接学报, 2002, 23(4): 48-52.Yang Xinqi, Wang Dongpo, Li Xiaowei,et al. Large-sized CTOD test for welded joints of offshore petroleum plat-form[J]. Transactions of the China Welding Institution, 2002, 23(4): 48-52.[3] Wu Y M, Wang Y Q, Shi Y J. Effects of low temperature on properties of structural steels[J]. Journal of University of Science and Technology, 2004, 11(5): 442-446.[4] 张 熹, 董现春, 陈延清, 等. Q690CFD热影响区粗晶区再热脆化研究[J]. 钢铁, 2010, 45(11): 86-89, 100.Zhang Xi, Dong Xianchan, Chen Yanqing,et al. Study on reheat embitterment in coarse-grain region of heat affected zone (CGHAZ) of Q690CFD[J]. Iron and Steal, 2010, 45(11): 86-89, 100.[5] 王元清, 刘希月, 石永久. 960 MPa高强度钢材对接焊缝的低温断裂韧性[J]. 材料研究学报, 2013, 27(3): 238-246.Wang Yuanqing, Liu Xiyue, Shi Yangjiu. The fracture toughness of butt weld at low temperature of 960 MPa high-structure steel[J]. Chinese Journal of Materials Research, 2013, 27(3): 238-246.[6] 武延民. 钢结构脆性断裂的力学机理及其工程设计方法研究[D]. 北京: 清华大学, 2004.[7] 王元清, 周 晖, 奚 望, 等. 铁路钢轨铝热焊接接头的低温力学性能试验[J]. 焊接学报, 2010, 31(7): 13-16.Wang Yuanging, Zhou Hui, Xi Wang,et al. Experimental study on mechanical properties of thermit joints of rail steels at low temperature[J]. Transactions of the China Welding Institution, 2010, 31(7): 13-16.
    • Related Articles

  • Related Articles

    [1]WEN Xue, WANG Honghui, LI Xiyan, QIAN Jiankang, BI Siyuan, LEI Zhenglong. The difference of CTOD of X80M pipeline steel fully automatic welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2024, 45(2): 98-104. DOI: 10.12073/j.hjxb.20230313001
    [2]ZHU Min, ZHANG Yansong. Analysis of microstructure and local softening of heat-affected zone of submerged-arc welded X80 joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(4): 69-73, 96. DOI: 10.12073/j.hjxb.20200929002
    [3]WEN Peiyin1, LI Zhuoxin1, QI Yongtian1, ZHANG Tianli1, Kim H J2. Effect of heat input on microstructure and impact toughness of on F69A4-ECM4-M4 metal-cored submerged arc welding wire deposited metal[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 50-54. DOI: 10.12073/j.hjxb.2018390012
    [4]ZHANG Nan, CHEN Yanqing, XU Xiaoning, LIU Xingquan. Effect of Cu-Ni components in X80 pipeline and heat input on discretization of toughness in CGHAZ[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(9): 119-124.
    [5]WANG Huichao, ZHANG Zhi, YANG Lijun, ZHANG Jin, MENG Xianqun, HUANG Shiming, BAI Qiuyi. Research and development of TM13 high toughness submerged arc welding wire[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(5): 115-118.
    [6]WANG Wei, TAN Caiwang, XU Liang, WANG Xuyou, LIN Shangyang. Laser cutting 30 mm steel plates under water of 50 m[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(1): 35-38.
    [7]LIANG Guoli, YANG Shanwu, WU Huibin, LIU Xueli. Impact toughness of simulated CGHAZ with high heat input for adding trace Zr oil tank steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (11): 85-88.
    [8]JIN Yuhua, WANG Xijing, LI Changfeng, ZHANG Jie. Study on tensile properties of friction-stir-welded joints of 2024-M aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (4): 69-72.
    [9]ZHANG Yingqiao, ZHANG Hanqian, LIU Weiming. Effects of M-A constituent on toughness of coarse grain heat-affected zone in HSLA steels for oil tanks[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (1): 109-112.
    [10]Yang Yongxing, Tong Yiangang, Liu Miaotao, Kang Zhixi. RELATIONSHIP BETWEEN THE TOUGHNESS AND FINE MICROSTRUCTURES OF M-A CONSTITUENTS IN RESTRAINED MULTIPASS TIG WELDED HAZS OF 15CrMoV BAINITIC STEEL[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1986, (4): 174-180.

  • Cited by

    Periodical cited type(3)

    1. 张立原，王小明，刘洋，袁涛，游家庆，江丰，李雅颖，赵幸，郭倩倩. 温度对1Cr钢CO_2腐蚀行为的影响. 材料保护. 2024(07): 136-141 .
    2. 朱烨森，刘梁，徐云泽，王晓娜，刘刚，黄一. 溶液pH和温度对X65管线钢焊缝非均匀腐蚀的影响. 材料导报. 2022(01): 154-160 .
    3. 许玮，骆佳仪，韩曰辉. 建筑外墙钢板涂层附着力、耐蚀性研究. 兵器材料科学与工程. 2020(06): 78-81 .

    Other cited types(1)

Catalog

    Get Citation
    XML
    Article views (770) PDF downloads (5) Cited by(4)
    Turn off MathJax
    Article Contents
    Abstract
    References
    Related Articles

    Website Copyright © Editorial Office of Transactions of the China Welding Institution, Welding Journals Publishing HouseTel：0451-86323218Address：No. 2077, Chuangxin Road, Songbei District, Harbin

    Supported by: Beijing Renhe Information Technology Co. Ltd    Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return