The effects of cold rolling temperature on corrosion resistance of pure iron

Lv Jinlong, Luo Hongyun

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

The effects of cold rolling temperature on grain size and grain orientation of pure iron were investigated. Comparing with sample rolled at room temperature, the grain refinement was facilitated in sample obtained by cryogenic cold rolling at liquid-nitrogen temperature. However, the grain orientation changed little for two samples. It was shown that cathodic hydrogen evolution reaction could govern the corrosion reaction for pure iron in sulfuric acid solution. The grain refinement obtained by rolling improved the corrosion resistance of iron in sulfuric acid solution, borate buffer solution and borate buffer solution with chloride ion. However, comparing with iron rolled at room temperature, the corrosion resistance of iron obtained by cryogenic temperature rolling was lower. Comparing with iron rolled at room temperature, higher dislocation density in iron rolled at cryogenic temperature reduced its corrosion resistance.

Original languageEnglish
Pages (from-to)125-130
Number of pages6
JournalApplied Surface Science
Volume317
DOIs
Publication statusPublished - 2014 Oct 30

Keywords

  • Corrosion resistance
  • Cryogenic cold rolling
  • Grain size
  • Microstructure

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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