Volume 23 Issue 6
Dec.  2008
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CHEN Yong, ZHANG Jing-hai, LI Xiao-quan. Embrittlement Mechanism of the Welding Deposit Metal of 800MPa Grade Steel[J]. Development and Application of Materials, 2008, 23(6): 33-37. DOI: 10.19515/j.cnki.1003-1545.2008.06.010
Citation: CHEN Yong, ZHANG Jing-hai, LI Xiao-quan. Embrittlement Mechanism of the Welding Deposit Metal of 800MPa Grade Steel[J]. Development and Application of Materials, 2008, 23(6): 33-37. DOI: 10.19515/j.cnki.1003-1545.2008.06.010
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Embrittlement Mechanism of the Welding Deposit Metal of 800MPa Grade Steel

  • 1. Provincial key lab. of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, China;

  • 2. Luoyang Ship Matreial Research Institute, Luoyang 471039, China

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  • Received Date: August 10, 2008
  • Available Online: March 29, 2024
    Graphical Abstract
    • Abstract
  • 10Ni5CrMoV steel is widely used in ship structure.In order to eliminate the remain stress yielded in weld process,the deposit metal usually is heat-treated after welding.It is found that the-50℃ impact energy of the welding deposit metal after-welding heat treatment descends remarkably.SEM、TEM and AES were employed to investigate the microstructure and impact fracture energy.The results show that disappearance of batten structure during the treatment,segregation of phosphorus on grain boundary and large amount of Fe3C precipitated on grain boundary lead the descent of impact energy.
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