Sensitization evaluation of the AISI 2205 duplex stainless steel by the IQ value in EBSD technique

Lv Jinlong, Wang Zhuqing

Research output: Contribution to journalArticle

Abstract

The degree of sensitization of the 2205 duplex stainless steel was evaluated by the double loop electrochemical potentiokinetic reactivation technique and EBSD method. The IQ value of ferritic phase was higher than that of austenitic phase for solid solution 2205 duplex stainless steel. However, some local small regions in ferritic phase and grain boundaries showed very low IQ value for sensitized 2205 duplex stainless steel, which was attributed to the precipitation of carbides and the formation of chromium depleted regions. This conclusion was supported by electrochemical results. Therefore, the IQ value could evaluate the degree of sensitization of the duplex stainless steel.

Original languageEnglish
Pages (from-to)65-69
Number of pages5
JournalEngineering Failure Analysis
Volume105
DOIs
Publication statusPublished - 2019 Nov

Keywords

  • Corrosion
  • Electron backscattered diffraction
  • Sensitization
  • Stainless steel

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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