Diversified Aggregated Patterns of Alumina Inclusions in High-Al Iron Melt

Guocheng Wang, Yang Zhao, Yuanyou Xiao, Pengliang Jin, Shengli Li, Seetharaman Sridhar

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

High-concentration Al deoxidation resulting in diversified aggregated patterns of alumina inclusions in high-Al iron melt were observed, especially, a new alumina agglomerate with a ring shape was reported and discussed in the current work. A large number of small alumina particle originated from the explosive nucleation of alumina in Fe-Al-O reaction zone with high-concentration Al in a short time is the critical condition for forming the alumina-agglomerated ring. To understand the stabilities of the ring, the relationships among the liquid capillary force, the equivalent inner radius of ring, the filling angle, and the separation distance h were quantitatively investigated based on a mathematical model and experimental results. The new phenomenon and formation mechanism of alumina-agglomerated ring could be important to high-Al steel metallurgy.

Original languageEnglish (US)
Pages (from-to)3051-3066
Number of pages16
JournalMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume51
Issue number6
DOIs
StatePublished - Dec 2020
Externally publishedYes

ASJC Scopus subject areas

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

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