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SVET Characterization of Localized Corrosion of Welded X70 Pipeline Steel in Acid Solution

  • Li Wei Wang*
  • , Cui Wei Du
  • , Zhi Yong Liu
  • , Xiao Gang Li
  • *Corresponding author for this work
  • University of Science and Technology Beijing

Research output: Contribution to journalArticlepeer-review

Abstract

The mophology of X70 pipeline steel weld jiont was investigated by SEM and its localized corrosion behaviors in Yingtan acid simulation solution were studied by scanning vibrating electrode technique (SVET). It is demonstrated that there was a higher corrosion current density on the surface of heat affected zone (HAZ) than on weld metal and base metal (BM). The current density o£ BM decreased with the increase of distance from HAZ.

Original languageEnglish
Pages (from-to)935-939
Number of pages5
JournalCorrosion and Protection
Volume33
Issue number11
StatePublished - 2012
Externally publishedYes

Keywords

  • X70 steel weld joint
  • acid solution
  • localized corrosion
  • scanning vibrating electrode technique(SVET)

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