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LI Dayong, YANG Dongqing, WANG Ping, ZHANG Guangjun. Analysis on microstructure and properties of under-matching weld joint of high strength steel 10Ni5CrMoV[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 87-91. DOI: 10.12073/j.hjxb.20170519
Citation: LI Dayong, YANG Dongqing, WANG Ping, ZHANG Guangjun. Analysis on microstructure and properties of under-matching weld joint of high strength steel 10Ni5CrMoV[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 87-91. DOI: 10.12073/j.hjxb.20170519
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Analysis on microstructure and properties of under-matching weld joint of high strength steel 10Ni5CrMoV

  • State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

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  • Received Date: December 05, 2016
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    • Abstract
  • In order to solve the inevitable cold crack problem in 10Ni5CrMoV high strength steel thick plate welding under the condition of large constraint degree, the high-chromium-nickel austenitic stainless steel welding wire with low-match strength was developed in this paper. The microstructure and properties of the welded joint were analyzed. The results showed that the formation of the welded joint was good without crack defects. The welding metal was mainly composed of dendritic austenite and a small amount of granular precipitates. The tensile strength of the joint was 800 MPa and the sample after bending test was not fractured. The impact toughness AKV (-80 ℃) was greater than 90 J, which meets the technical requirements.
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    • References (7)
  • 刘德重, 冯 琼, 张升才, 等. 船用10Ni5CrMoV高强钢的疲劳性能[J]. 材料科学与工程学报, 2014, 32(2): 227-233. Liu Dezhong, Feng Qiong, Zhang Shengcai, et al. Fatigue performance of marine high strength steel 10Ni5CrMoV[J]. Journal of Materials Science & Engineering, 2014, 32(2): 227-233.
    刘 露, 王加友, 李大用, 等. 10Ni5CrMoV钢错位同步双面双弧焊接接头抗低温脆断性能[J]. 焊接学报, 2016, 37(8): 109-113. Liu Lu, Wang Jiayou, Li Dayong, et al. Low temperature brittle fracture resistance of asymmetrical synchronous double-sided arc welded joint of 10Ni5CrMoV steel[J]. Transactions of the China Welding Institution, 2016, 37(8): 109-113.
    尹士科, 郭怀力, 王移山. 焊接热循环对10Ni5CrMoV钢组织的影响[J]. 焊接学报, 1996, 17(1): 25-30. Yin Shike, Guo Huaili, Wang Yishan. Influence of welding thermal cycle on microstructure of 10Ni5CrMoV steel[J]. Transactions of the China Welding Institution, 1996, 17(1): 25-30.
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