Mathematical Model of Thermogravimetric Curves of FeCrAl(La) Alloy Oxidation in Air

  • Irakli NAKHUTSRISHVILI Ph.D, Senior Researcher of Institute of Cybernetics
  • Omar TKESHELASHVILI Leader Engineer of Institute of Cybernetics
  • Andro CHANISHVILI Ph.D, Head of Department of Institute of Cybernetics
Keywords: FeCrAl(La), Oxidation, Mass Gain, Power Law, Reaction Area Reduction

Abstract

The oxidation process of FeCrAl(La) alloy at 1200oC in air is investigated. Alternative models of the thermogravimetric curve of this process are considered. This curve can be described by the cubic power dependence. A model of reaction area reduction for the formation of basic oxides can be used as well. This reduction can be explained by the formation of non-basic (barrier) compounds.

 

Author Biographies

Irakli NAKHUTSRISHVILI, Ph.D, Senior Researcher of Institute of Cybernetics
Georgian Technical University
Omar TKESHELASHVILI, Leader Engineer of Institute of Cybernetics
Georgian Technical University
Andro CHANISHVILI, Ph.D, Head of Department of Institute of Cybernetics
Georgian Technical University
Published
09-11-2016
Section
Articles