A kinetic study of controlling nitrogen in process for boron steel by using 30N2 isotope gas

Seung Min Han, Dong Joon Min, Joo Hyun Park, Jung Ho Park, Jong Min Park

Research output: Contribution to journalArticle

Abstract

The kinetic study of the nitrogen dissolution was investigated. An isotope exchange technique is employed as a method for measuring the rate of nitrogen dissolution into the molten steel and the effects of O, S, C, Mn, and B addition on surface reaction have been considered at 1873 K. Experimental result shows nitrogen dissolution is first order reaction with regard to the partial pressure of nitrogen and rate constant on bare surface of the liquid metal, k0 is 3.49 Õ 10-5 (mol/cm2.satm). It seems that the rate determining step is the dissociation reaction with nitrogen gas adsorption. The adsorption coefficients are calculated to be KO = 300, KS = 130, KMn = -0.26, and KB = 0.9.

Original languageEnglish
Pages (from-to)601-608
Number of pages8
JournalRevue de Metallurgie. Cahiers D'Informations Techniques
Volume105
Issue number12
DOIs
Publication statusPublished - 2008 Jan 1

Fingerprint

Boron
Steel
Isotopes
boron
Nitrogen
isotopes
Gases
steels
nitrogen
Kinetics
kinetics
dissolving
gases
Dissolution
Gas adsorption
adsorption
Surface reactions
liquid metals
Liquid metals
Partial pressure

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Cite this

Han, Seung Min ; Min, Dong Joon ; Park, Joo Hyun ; Park, Jung Ho ; Park, Jong Min. / A kinetic study of controlling nitrogen in process for boron steel by using 30N2 isotope gas. In: Revue de Metallurgie. Cahiers D'Informations Techniques. 2008 ; Vol. 105, No. 12. pp. 601-608.
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A kinetic study of controlling nitrogen in process for boron steel by using 30N2 isotope gas. / Han, Seung Min; Min, Dong Joon; Park, Joo Hyun; Park, Jung Ho; Park, Jong Min.

In: Revue de Metallurgie. Cahiers D'Informations Techniques, Vol. 105, No. 12, 01.01.2008, p. 601-608.

Research output: Contribution to journalArticle

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