Metallurgical and Materials Transactions B

, Volume 43, Issue 1, pp 5–13 | Cite as

Effects of Different Boron Compounds on the Corrosion Resistance of Andalusite-Based Low-Cement Castables in Contact with Molten Al Alloy

  • Esmaeil AdabiFiroozjaei
  • Pramod Koshy
  • Charles Chris Sorrell
Communication
First Online:

Abstract

Interfacial reactions between Al alloy and andalusite low-cement castables (LCCs) containing 5 wt pct B2O3, B4C, and BN were analyzed at 1123 K and 1433 K (850 °C and 1160 °C) using the Alcoa cup test. The results showed that the addition of boron-containing materials led to the formation of aluminoborate (9Al2O3.2B2O3) and glassy phase containing boron in the prefiring temperature (1373 K [1100 °C]), which consequently improved the corrosion resistance of the refractories. The high heat of formation of the aluminoborate phase (which increased its stability to reactions with molten Al alloy) and the low solubility of boron in molten Al were the major factors that contributed to the improvement in the corrosion resistance of B-doped samples.

Keywords

Corrosion Resistance B2O3 Cristobalite Kyanite Glassy Phase 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Notes

The authors acknowledge Amol Refractory Industries Company for their financial and technical support.

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Copyright information

© THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2011

Authors and Affiliations

  • Esmaeil AdabiFiroozjaei
    • 1
    • 2
  • Pramod Koshy
    • 3
  • Charles Chris Sorrell
    • 3
  1. 1.Department of Materials EngineeringIsfahan University of TechnologyIsfahanIran
  2. 2.Amol Refractory Industry CompanyAmolIran
  3. 3.School of Materials Science and EngineeringUniversity of New South WalesSydneyAustralia

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