Thesis oxidation kinetic

M. Roy, in Developments in High Temperature Corrosion and Protection of Materials, 2008 The oxidation kinetics of metals and alloys are found to alter during erosion or wear. The observation on enhanced oxidation kinetics is primarily centred on iron based alloys.

Oxidation kinetics established with the cyclic and isothermal oxidation tests clearly showed that all the mass gains increased in a parabolic manner, and the kinetics obtained with cyclic and isothermal tests did not show any significant differences; From: Developments in High Temperature Corrosion and Protection of Materials, 2008

The two steps may use the same oxidant and conditions, or may use two different oxidants (such as damp oxygen, then a nitrogen-containing atmosphere). Oxidation kinetics concerns the evolution with time, t, of the oxide thickness, x ( t ), or of the oxide weight, which would be equivalent if the density of the amorphous oxide were constant.

Early work regarded kinetics as a means to understand mechanism. For thin oxides, kinetic studies do little more than set limits on dominant oxidation mechanisms. Isotope studies, core spectroscopies, spin resonance, and topographic imaging on an atomic scale all contribute to an overall picture.