Studies on CUI of carbon steel in simulation environment containing chloride and sulfur at 80°C

Jianqun Tang, Jianming Gong, Yingjie Jian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Corrosion under insulation (CUI) is a localized corrosion occurring at the interface of a metal surface and the insulation on the metal surface. In order to explore the mechanism of CUI, some tests were conducted on 20 # carbon steel under insulation dripping different testing solution at 80°C in an experimental simulation device for CUI. Corrosion behaviors were analyzed by weight loss methods and other methods. The results showed that CUI rate of 20 # carbon steel increased with NaCl concentration. The addition of sulfur and the decrease of pH promoted corrosion. The pits and small cracks were found on the corroded metal and the bonding between products and matrix was strong.

Original languageEnglish
Title of host publicationLatest Development of Applied Materials Technology
Pages166-170
Number of pages5
DOIs
StatePublished - 2012
Event6th Cross-Strait Conference on Advanced Engineering Materials - Nanjing, China
Duration: 8 Nov 201111 Nov 2011

Publication series

NameAdvanced Materials Research
Volume509
ISSN (Print)1022-6680

Conference

Conference6th Cross-Strait Conference on Advanced Engineering Materials
Country/TerritoryChina
CityNanjing
Period8/11/1111/11/11

Keywords

  • 20 carbon steel
  • Corrosion under insulation
  • Experimental simulation
  • NaCl
  • Sulfur

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