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Zhang Wenyue, Zhu Meili, Qin Boxiong. Research on effective diffusive hydrogen and hydrogen diffusive factor of welding cold cracking susceptibility[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1991, (3): 129-135.
Citation: Zhang Wenyue, Zhu Meili, Qin Boxiong. Research on effective diffusive hydrogen and hydrogen diffusive factor of welding cold cracking susceptibility[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1991, (3): 129-135.
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Research on effective diffusive hydrogen and hydrogen diffusive factor of welding cold cracking susceptibility

  • Tianjin University

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  • Received Date: August 06, 1990
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    • Abstract
  • The residual diffusive hydrogen HR100 in the welded zone of HSLA (high strength low alloy) steels while cooled down to 100℃ has been investigated in this paper.Its effect on the cold cracking susceptibility is more important than that of the initial hydrogen content H0 in the deposited metal.The residual diffusive hydroden HR100 is equal to the effective diffusive hydrogen Hc without postheat,but when postheat is involved,Hc is equal to the residual diffusive hydrogen HRP at the end of postheating.The calculating fromulas of the effective diffusive hydrogen Hc and the hydrogen diffusive factor DF have been also put forward in this paper,and their computer programs have been compiled.Through the test of measurement,it was proved that the calculating formulas are belivable.The research has great significant for ascertaining the mechanism of welding cold cracking as well as for engineering application.
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