Pitting corrosion behaviour of 2101 duplex stainless steel in chloride solutions

Tian Sheng Huang, Wen Ta Tsai, Szu Jung Pan, Keh Chin Chang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The corrosion behaviour of 2101 duplex stainless steel (DSS) in NaCl solution was studied and compared with that of 2205 DSS. The effects of chloride concentration and solution temperature on pitting corrosion behaviour were focused. The relative sensitivity to pitting corrosion of the constituent phases in both 2101 and 2205 DSSs was also explored. Pitting corrosion susceptibility was evaluated by conducting cyclic polarisation curve measurement. The corrosion morphology was examined by a scanning electron microscope equipped with energy dispersive spectrometer. The experimental results showed that the pitting corrosion resistance of 2101 DSS was inferior to that of 2205 DSS by exhibiting a lower threshold chloride concentration and a lower critical pitting temperature. For both 2101 and 2205 DSSs, the ferrite phase was more susceptible than austenite phase to pitting corrosion. This paper is part of a supplementary issue from the 17th Asia-Pacific Corrosion Control Conference (APCCC-17).

Original languageEnglish
Pages (from-to)9-15
Number of pages7
JournalCorrosion Engineering Science and Technology
Volume53
DOIs
Publication statusPublished - 2018 Mar 13

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Stainless Steel
Pitting
Chlorides
Stainless steel
Corrosion
Austenite
Ferrite
Corrosion resistance
Spectrometers
Electron microscopes
Polarization
Scanning
Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

Cite this

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Pitting corrosion behaviour of 2101 duplex stainless steel in chloride solutions. / Huang, Tian Sheng; Tsai, Wen Ta; Pan, Szu Jung; Chang, Keh Chin.

In: Corrosion Engineering Science and Technology, Vol. 53, 13.03.2018, p. 9-15.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Pitting corrosion behaviour of 2101 duplex stainless steel in chloride solutions

AU - Huang, Tian Sheng

AU - Tsai, Wen Ta

AU - Pan, Szu Jung

AU - Chang, Keh Chin

PY - 2018/3/13

Y1 - 2018/3/13

N2 - The corrosion behaviour of 2101 duplex stainless steel (DSS) in NaCl solution was studied and compared with that of 2205 DSS. The effects of chloride concentration and solution temperature on pitting corrosion behaviour were focused. The relative sensitivity to pitting corrosion of the constituent phases in both 2101 and 2205 DSSs was also explored. Pitting corrosion susceptibility was evaluated by conducting cyclic polarisation curve measurement. The corrosion morphology was examined by a scanning electron microscope equipped with energy dispersive spectrometer. The experimental results showed that the pitting corrosion resistance of 2101 DSS was inferior to that of 2205 DSS by exhibiting a lower threshold chloride concentration and a lower critical pitting temperature. For both 2101 and 2205 DSSs, the ferrite phase was more susceptible than austenite phase to pitting corrosion. This paper is part of a supplementary issue from the 17th Asia-Pacific Corrosion Control Conference (APCCC-17).

AB - The corrosion behaviour of 2101 duplex stainless steel (DSS) in NaCl solution was studied and compared with that of 2205 DSS. The effects of chloride concentration and solution temperature on pitting corrosion behaviour were focused. The relative sensitivity to pitting corrosion of the constituent phases in both 2101 and 2205 DSSs was also explored. Pitting corrosion susceptibility was evaluated by conducting cyclic polarisation curve measurement. The corrosion morphology was examined by a scanning electron microscope equipped with energy dispersive spectrometer. The experimental results showed that the pitting corrosion resistance of 2101 DSS was inferior to that of 2205 DSS by exhibiting a lower threshold chloride concentration and a lower critical pitting temperature. For both 2101 and 2205 DSSs, the ferrite phase was more susceptible than austenite phase to pitting corrosion. This paper is part of a supplementary issue from the 17th Asia-Pacific Corrosion Control Conference (APCCC-17).

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