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Permeating hydrogen generated from the elemental sulfur corrosion of low carbon steel

  • Yichao Liu
  • , Xiankang Zhong
  • , Zhitao Wang
  • , Kyra Sedransk Campbell
  • , Li Zhou
  • , Xi Yuan
  • , Jiansheng Yu
  • , Lingjie Li
  • , Junying Hu
  • Southwest Petroleum University China
  • Ltd.
  • China National Petroleum Corporation
  • University of Sheffield
  • Petro China Southwest Oil & Gas field Company

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Permeating hydrogen generated from the elemental sulfur corrosion of low carbon steel was investigated using a double cell system and its effect on the mechanical properties of steel was also discussed. Results show that elemental sulfur corrosion of low carbon steel is accompanied by significant hydrogen permeation, e.g., permeating hydrogen current reaches 12.3 μA/cm2 in CO2-containing environment at 80 °C. The hydrogen permeation process are greatly affected by the structure and composition of the corrosion product, the environmental temperature and gas composition. This permeating hydrogen enhances the brittleness of the low carbon steel and tends to cause hydrogen-induced cracking.

Original languageEnglish
Article number110987
JournalCorrosion Science
Volume213
DOIs
StatePublished - 1 Apr 2023
Externally publishedYes

Keywords

  • Elemental sulfur corrosion
  • Humid environment
  • Hydrogen permeation
  • Localized corrosion
  • Sulfur-resistant steel

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