Effect of austenite grain size on the transformation kinetics of upper and lower bainite in a low-alloy steel

Seok Jae Lee, June Soo Park, Young Kook Lee

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)

Abstract

The effect of austenite grain size on the continuous cooling transformation kinetics of upper and lower bainite in a low-alloy steel has been investigated using a dilatometer. The transition temperature between upper and lower bainite is almost constant (430 °C) irrespective of the grain size. The transformation rate of upper bainite increased with a decrease in grain size. The instantaneous transformation rate of lower bainite at each volume fraction is not related to the austenite grain size.

Original languageEnglish
Pages (from-to)87-90
Number of pages4
JournalScripta Materialia
Volume59
Issue number1
DOIs
Publication statusPublished - 2008 Jul

Bibliographical note

Funding Information:
This research was supported by the National Core Research Center (NCRC) program from MOST and KOSEF (No. R15-2006-022-01002-0) and by Components and Materials Technology Development program from MOCIE.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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