Relation of Sulfide Inclusion Behavior and Liquation to Hydrogen Cold Cracking Susceptibility : Association of Partial Melting and Hydrogen Cold Cracking in Weld Heat-Affected Zone of HSLA Steel (Part II)

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概要

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• The behavior of the sulfide inclusion in the HY-80 and SM50B heat-affected zones was observed, and its relation to the hydrogen cold cracking susceptibility was examined. The sulfide inclusion in the HY-80 heat-affected zone heated to 1450℃ was located in the form of array in the rolling direction. The behavior of the dissolved globular sulfide inclusion in the HY-80 heat-affected zone was quite different from that in the SM50B heat-affected zone heated to 1450℃, and it was assumed that this difference in the behavior caused the HY-80 heat-affected zone to be more susceptible to the hydrogen cold cracking. Consequently, it was proved that the partial melting which occurred in the heat-affected zone, such as in the HY-80 steel, was a main factor influencing the behavior of the dissolved globular sulfide inclusion, which had a close relation to the hydrogen cold cracking susceptibility.

• 社団法人溶接学会の論文
• 1988-04-01

著者

• WATANABE Takehiko

  National Research Institute for Metals

• Watanabe Takehiko

  National Research Institute For Metals:(present Address)department Of Mechanical Engineering Niigata

関連論文

• A Study on the Formation of Partially Melted Regions in Weld Heat-Affected Zone of High Strength Steel
• Relation of Thermal Cycle for Simulation to Hydrogen Cold Cracking Susceptibility and Direct Observation of Cracking : Association of Partial Melting and Hydrogen Cold Cracking in Weld Heat-Affected Zone of HSLA Steel (Part I)
• Relation of Sulfide Inclusion Behavior and Liquation to Hydrogen Cold Cracking Susceptibility : Association of Partial Melting and Hydrogen Cold Cracking in Weld Heat-Affected Zone of HSLA Steel (Part II)

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