Diffusion of carbon and titanium in γ -iron in a magnetic field and a magnetic field gradient

S. Nakamichi, S. Tsurekawa, Y. Morizono, T. Watanabe, Minoru Nishida, A. Chiba

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

The diffusion coefficients of carbon and titanium in γ -iron were measured in a 6T magnetic field and in magnetic field gradients ranging from 30 to 45 T/m. We have found that the diffusion of carbon in γ -iron is retarded by application of a 6T magnetic field. In contrast with carbon diffusion, no noticeable effect of a magnetic field on the diffusivity of titanium in γ -iron is observed. On the other hand, the diffusion of carbon in γ -iron can be enhanced in a magnetic field gradient when carbon atoms move towards the direction with a higher magnetic field strength. The higher the magnetic field gradient strength becomes, the more the carbon diffusion is enhanced. Nevertheless, a magnetic field gradient causes a decrease in diffusivity of carbon in γ -iron when the opposite magnetic field gradient is applied.

Original languageEnglish
Pages (from-to)3191-3198
Number of pages8
JournalJournal of Materials Science
Volume40
Issue number12
DOIs
Publication statusPublished - Jun 1 2005
Externally publishedYes

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Titanium
Carbon
Iron
Magnetic fields
Atoms

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Diffusion of carbon and titanium in γ -iron in a magnetic field and a magnetic field gradient. / Nakamichi, S.; Tsurekawa, S.; Morizono, Y.; Watanabe, T.; Nishida, Minoru; Chiba, A.

In: Journal of Materials Science, Vol. 40, No. 12, 01.06.2005, p. 3191-3198.

Research output: Contribution to journalArticle

Nakamichi, S. ; Tsurekawa, S. ; Morizono, Y. ; Watanabe, T. ; Nishida, Minoru ; Chiba, A. / Diffusion of carbon and titanium in γ -iron in a magnetic field and a magnetic field gradient. In: Journal of Materials Science. 2005 ; Vol. 40, No. 12. pp. 3191-3198.
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