Dynamic strain-induced ferrite transformation during hot compression of low carbon Si-Mn steels

Ming Hui Cai, Hua Ding, Young Kook Lee

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The dynamic strain-induced transformation (DSIT) of austenite to ferrite was investigated under different undercooling conditions using three low carbon Si-Mn steels. The undercooling of austenite (ΔT) was controlled by varying the cooling rate between austenitization and deformation temperatures. Uniform DSIT ferrite grains (∼2.3 μm) were produced at a relatively high deformation temperature above 840°C using a low carbon high Si steel (0.077C-0.97Mn-1.35Si, mass%) in connection with a larger ΔT. The critical conditions for DSIT were determined based on the flow stress-strain curves measured during hot compression tests. Influence of deformation temperature on DSIT of low carbon Si-added steel was also discussed.

Original languageEnglish
Pages (from-to)1722-1727
Number of pages6
JournalMaterials Transactions
Volume52
Issue number9
DOIs
Publication statusPublished - 2011 Nov 11

Fingerprint

Steel
Hot pressing
Ferrite
ferrites
Carbon
steels
Undercooling
carbon
supercooling
austenite
Austenite
compression tests
Stress-strain curves
Plastic flow
Temperature
temperature
Cooling
cooling
curves

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "The dynamic strain-induced transformation (DSIT) of austenite to ferrite was investigated under different undercooling conditions using three low carbon Si-Mn steels. The undercooling of austenite (ΔT) was controlled by varying the cooling rate between austenitization and deformation temperatures. Uniform DSIT ferrite grains (∼2.3 μm) were produced at a relatively high deformation temperature above 840°C using a low carbon high Si steel (0.077C-0.97Mn-1.35Si, mass{\%}) in connection with a larger ΔT. The critical conditions for DSIT were determined based on the flow stress-strain curves measured during hot compression tests. Influence of deformation temperature on DSIT of low carbon Si-added steel was also discussed.",
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Dynamic strain-induced ferrite transformation during hot compression of low carbon Si-Mn steels. / Cai, Ming Hui; Ding, Hua; Lee, Young Kook.

In: Materials Transactions, Vol. 52, No. 9, 11.11.2011, p. 1722-1727.

Research output: Contribution to journalArticle

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