Kinetics of shape control of alumina inclusions with calcium treatment in line pipe steel for sour service

Yo Ichi Ito, Mamoru Suda, Yoshiei Katou, Hakaru Nakato, Ken Ichi Sorimachi

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The rate of shape control of alumina inclusions with calcium in line pipe steel for sour service is determined by a 30 kg high frequency induction furnace. The shape control of alumina inclusions proceeds with the increase in time after calcium addition. The degree of shape control is increased with the increase of stirring energy supplied and the decrease of the time from aluminum addition to calcium addition. Applying the unreacted core model to experimental results, the rate determining step in the shape control of alumina inclusions is believed to be calcium diffusion in the calcium-aluminate product layer.

Original languageEnglish
JournalISIJ International
Volume36
Issue numberSUPPL.
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Aluminum Oxide
Steel pipe
Calcium
Alumina
Kinetics
Aluminum
Furnaces

Keywords

  • Alumina
  • Calcium
  • Inclusion
  • Shape control
  • Unreacted core model

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Kinetics of shape control of alumina inclusions with calcium treatment in line pipe steel for sour service. / Ito, Yo Ichi; Suda, Mamoru; Katou, Yoshiei; Nakato, Hakaru; Sorimachi, Ken Ichi.

In: ISIJ International, Vol. 36, No. SUPPL., 1996.

Research output: Contribution to journalArticle

Ito, Yo Ichi ; Suda, Mamoru ; Katou, Yoshiei ; Nakato, Hakaru ; Sorimachi, Ken Ichi. / Kinetics of shape control of alumina inclusions with calcium treatment in line pipe steel for sour service. In: ISIJ International. 1996 ; Vol. 36, No. SUPPL.
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