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<p>“Grooving” corrosion, or selective seam weld corrosion, is a common failure mode in tubular steel products joined by electric resistance welding (ERW). This type of corrosion is generally attributed to the formation of “active” MnS inclusions with sulfur-rich zones around the weld seam (producing anodic sites for corrosion to occur) and can be misinterpreted as a welding imperfection. This paper details the features and mechanisms associated with grooving corrosion, along with two case studies.</p>

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Grooving Corrosion: Features, Mechanisms, and Case Studies of Selective Seam Weld Corrosion

  • 期刊论文

  • 发表日期：

    2026年5月7日

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  • Vir Nirankari,
  • Brad James,
  • Alex Hudgins,
  • Noah Budiansky,
  • Ockert Van Der Schijff

摘要

“Grooving” corrosion, or selective seam weld corrosion, is a common failure mode in tubular steel products joined by electric resistance welding (ERW). This type of corrosion is generally attributed to the formation of “active” MnS inclusions with sulfur-rich zones around the weld seam (producing anodic sites for corrosion to occur) and can be misinterpreted as a welding imperfection. This paper details the features and mechanisms associated with grooving corrosion, along with two case studies.