Volume 33 Issue 5
Oct.  2018
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XUE Gang, WANG Tao, YANG Chaofei, NIU Jiajia, CHENG Yingjin. Existence State Analysis of Hydrogen Existing in Welding Process of Ferritic Steel[J]. Development and Application of Materials, 2018, 33(5): 48-53. DOI: 10.19515/j.cnki.1003-1545.2018.05.009
Citation: XUE Gang, WANG Tao, YANG Chaofei, NIU Jiajia, CHENG Yingjin. Existence State Analysis of Hydrogen Existing in Welding Process of Ferritic Steel[J]. Development and Application of Materials, 2018, 33(5): 48-53. DOI: 10.19515/j.cnki.1003-1545.2018.05.009
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Existence State Analysis of Hydrogen Existing in Welding Process of Ferritic Steel

  • Luoyang Ship Material Research Institute, Luoyang 471023, China

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  • Received Date: April 26, 2018
  • Available Online: March 18, 2024
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  • The existence state of hydrogen in welding process of ferritic steel was analyzed by theoretical calculation method and experiment. The results show that hydrogen exists in high temperature arc and molten pool in atomic state; that hydrogen exists in high temperature austenite octahedral interstice in atomic state; that hydrogen atoms gather in ferritic grain boundary during medium-low temperature ferritic stage, most of which form high pressure gaseous molecules and escape from open grain boundaries connected as network.
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