Comparison of experimental methods to measure the isothermal precipitation kinetics of Nb(C,N) in austenite of a Nb-Microalloyed steel

J. S. Park, Y. S. Ha, Young-Kook Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The isothermal precipitation kinetics of Nb(C,N) in strained austenite of a Nb-microalloyed steel was quantitatively investigated using electrical resistivity (ER) and interrupted compression methods and validated with transmission electron microscopy (TEM). The difference in precipitation start time (Ps) between the two methods is too small to compare the accuracy of the methods. The precipitation finish time (Pf) exhibits the larger difference between the two methods. The interrupted compression method gives too early Pf because of particle growth with holding time.

Original languageEnglish
Pages (from-to)1515-1519
Number of pages5
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume40
Issue number7
DOIs
Publication statusPublished - 2009 May 7

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Steel
austenite
Austenite
steels
Transmission electron microscopy
Kinetics
kinetics
transmission electron microscopy
electrical resistivity

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "The isothermal precipitation kinetics of Nb(C,N) in strained austenite of a Nb-microalloyed steel was quantitatively investigated using electrical resistivity (ER) and interrupted compression methods and validated with transmission electron microscopy (TEM). The difference in precipitation start time (Ps) between the two methods is too small to compare the accuracy of the methods. The precipitation finish time (Pf) exhibits the larger difference between the two methods. The interrupted compression method gives too early Pf because of particle growth with holding time.",
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AU - Ha, Y. S.

AU - Lee, Young-Kook

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N2 - The isothermal precipitation kinetics of Nb(C,N) in strained austenite of a Nb-microalloyed steel was quantitatively investigated using electrical resistivity (ER) and interrupted compression methods and validated with transmission electron microscopy (TEM). The difference in precipitation start time (Ps) between the two methods is too small to compare the accuracy of the methods. The precipitation finish time (Pf) exhibits the larger difference between the two methods. The interrupted compression method gives too early Pf because of particle growth with holding time.

AB - The isothermal precipitation kinetics of Nb(C,N) in strained austenite of a Nb-microalloyed steel was quantitatively investigated using electrical resistivity (ER) and interrupted compression methods and validated with transmission electron microscopy (TEM). The difference in precipitation start time (Ps) between the two methods is too small to compare the accuracy of the methods. The precipitation finish time (Pf) exhibits the larger difference between the two methods. The interrupted compression method gives too early Pf because of particle growth with holding time.

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JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

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