Quantitative evaluation of dynamic precipitation kinetics in a complex Nb-Ti-V microalloyed steel using electrical resistivity measurements

Jae Gil Jung, Jin Ho Bae, Young-Kook Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The kinetics of dynamic precipitation in austenite of a complex Nb-Ti-V microalloyed steel during hot compression at 900 C with a strain rate of 6.7 s-1 was quantitatively investigated through electrical resistivity measurements. The dynamic precipitation in the Nb-Ti-V microalloyed steel started at a strain of 0.15. The amount of tiny Nb-rich (Nb,Ti,V)C carbides, which were precipitated at crystal defects gradually increased up to 0.02 wt% at a maximum strain of 0.67. The electrical resistivity was successfully applied to the quantitative evaluation of dynamic precipitation kinetics in microalloyed steel by excluding the effects of crystal defects and interstitial atoms on the electrical resistivity.

Original languageEnglish
Pages (from-to)1159-1162
Number of pages4
JournalMetals and Materials International
Volume19
Issue number5
DOIs
Publication statusPublished - 2013 Sep 1

Fingerprint

Steel
Crystal defects
steels
crystal defects
electrical resistivity
Kinetics
evaluation
kinetics
Hot pressing
austenite
carbides
Austenite
strain rate
Carbides
Strain rate
interstitials
Atoms
atoms

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "The kinetics of dynamic precipitation in austenite of a complex Nb-Ti-V microalloyed steel during hot compression at 900 C with a strain rate of 6.7 s-1 was quantitatively investigated through electrical resistivity measurements. The dynamic precipitation in the Nb-Ti-V microalloyed steel started at a strain of 0.15. The amount of tiny Nb-rich (Nb,Ti,V)C carbides, which were precipitated at crystal defects gradually increased up to 0.02 wt{\%} at a maximum strain of 0.67. The electrical resistivity was successfully applied to the quantitative evaluation of dynamic precipitation kinetics in microalloyed steel by excluding the effects of crystal defects and interstitial atoms on the electrical resistivity.",
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Quantitative evaluation of dynamic precipitation kinetics in a complex Nb-Ti-V microalloyed steel using electrical resistivity measurements. / Jung, Jae Gil; Bae, Jin Ho; Lee, Young-Kook.

In: Metals and Materials International, Vol. 19, No. 5, 01.09.2013, p. 1159-1162.

Research output: Contribution to journalArticle

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