| Investigation of electrode and hydrogen induced crack in welded joint of dissimilar steel |
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| 引用本文： | Zhang Zhiming,Lu Daohua,Li Zhonglin Harbin Institute of Technology Feng Qiting,Peng Chuanliou Heilongjiang Electric Power Electrode Manufacturer,Harbin Wang Ruilin Northeast Electric Power Test Institute,Shenyang. Investigation of electrode and hydrogen induced crack in welded joint of dissimilar steel[J]. 中国焊接, 1992, 0(2) |
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| 作者姓名： | Zhang Zhiming Lu Daohua Li Zhonglin Harbin Institute of Technology Feng Qiting Peng Chuanliou Heilongjiang Electric Power Electrode Manufacturer Harbin Wang Ruilin Northeast Electric Power Test Institute Shenyang |
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| 作者单位： | Zhang Zhiming;Lu Daohua;Li Zhonglin Harbin Institute of Technology Feng Qiting;Peng Chuanliou Heilongjiang Electric Power Electrode Manufacturer，Harbin Wang Ruilin Northeast Electric Power Test Institute，Shenyang |
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| 摘 要： | The welded joint of dissimilar heat-resisting steels 20Crl2MoV(F12)and 12 Cr2MoWVTiB(102)generally works around 600°C.In this paperthree kinds of ferritic electrodes are used for testing.They are R817 high-strength electrode(CrllMoVNi),R347 low-strength electrode(Cr2MoVWB)and newly-developed R507MoNb medium-strength electrode.The study on theinfluence of those three different electrodes on carbon migration,HIC and hy-drogen diffusion shows that medium-strength electrodes can well control thecarbon migration,and that the tendency to HIC in the joint formed by R817 issmaller than that by R347 instead.Considering the effect of weld metal transfor-mation on the restraint stress and hydrogen concentration of a joint,the hydro-gen distribution in the heat-affected zone(HAZ)is calculated by using finite ele-ment method(FEM)with stress and strain changing,and so the effect of thetransformation behaviour on HIC is revealed.In addition,newly-developedR507MoNb electrodes,tested the elevated-temperature property,oxidation re-sistance and creep rupture strength,have fulfilled the technical standards con-cerned and passed the examination of on-the-spot operation.
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Investigation of electrode and hydrogen induced crack in welded joint of dissimilar steel |
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| Zhang Zhiming,Lu Daohua,Li Zhonglin Harbin Institute of Technology Feng Qiting,Peng Chuanliou Heilongjiang Electric Power Electrode Manufacturer,Harbin Wang Ruilin Northeast Electric Power Test Institute,Shenyang. Investigation of electrode and hydrogen induced crack in welded joint of dissimilar steel[J]. China Welding, 1992, 0(2) |
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| Authors: | Zhang Zhiming Lu Daohua Li Zhonglin Harbin Institute of Technology Feng Qiting Peng Chuanliou Heilongjiang Electric Power Electrode Manufacturer Harbin Wang Ruilin Northeast Electric Power Test Institute Shenyang |
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| Abstract: | |
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| Keywords: | dissimilar steel welding HIC electrode |
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