Measurement of interaction parameter between Cu and Al in molten high Al steel

Kengo Sugiyama, Shigeru Ueda, Xu Gao, Sunjoong Kim, Shin Ya Kitamura

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The interaction parameter between Cu and Al in molten iron containing high levels of Al was measured using a chemical equilibrium technique. A molten Fe-Al alloy was equilibrated with a molten Ag-Cu alloy in an Al2O3 crucible at 1 823 K. The activity coefficient of Cu in Fe-Al alloys was measured to be - 2.33 while varying the concentration of Al in a range from 0.04-0.2 mol%. The influence of Cu on the deoxidation equilibrium of Al and O was estimated using the above interaction parameter. The results indicate that under a constant Al concentration, a contamination of several percent of Cu raises the O concentration in high Al steel.

Original languageEnglish
Pages (from-to)625-629
Number of pages5
JournalIsij International
Volume57
Issue number4
DOIs
Publication statusPublished - 2017

Keywords

  • Activity coefficient
  • Al
  • Cu
  • High Al steel
  • Interaction parameter

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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