Reverse transformation of ferrite and pearlite to austenite in an ultrafine-grained low-carbon steel fabricated by severe plastic deformation

Young Il Son, Young Kook Lee, Kyung Tae Park

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Reverse transformation characteristics of a low-carbon steel consisting of ultrafine-grained (UFG) ferrite and severely deformed pearlite by severe plastic deformation were investigated and compared to those of the steel having coarse-grained (CG) ferrite and undeformed pearlite by austenitization and subsequent air cooling. Coarse-grained steel exhibited two serial transformation stages, i.e., pearlite → austenite followed by ferrite → austenite. Contrarily, UFG steel transformed with the three serial stages, i.e., probably carbon-supersaturated ferrite → austenite, not-fully-dissolved pearlite - austenite, and ferrite → austenite transformations.

Original languageEnglish
Pages (from-to)3161-3164
Number of pages4
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume37
Issue number10
DOIs
Publication statusPublished - 2006 Oct

Bibliographical note

Funding Information:
We gratefully acknowledge the financial support for this study from the Ministry of Commerce, Industry and Energy of Korea.

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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