General diffusion-kinetic model of metallic oxidation

被引：6

作者：

Doilnitsyna, VV ^{[1
]}

机构：

[1] All Russian Design & Res Inst Complex Power Techn, VNIPIET, St Petersburg 197183, Russia

来源：

CORROSION SCIENCE | 2002年 / 44卷 / 05期

关键词：

oxidant; non-stoichiometric oxide; mathematical modelling; sorption; oxidation kinetics;

D O I：

10.1016/S0010-938X(01)00127-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new mathematical diffusion-kinetic model of metallic oxidation under isothermal conditions is proposed, This model is used to define the universal kinetic equation to calculate the thickness of porous or dense oxide layer formed at a metal surface as function of oxidation time and several kinetic and equilibrium parameters describing longitudinal and lateral oxidant transfer. A block slot model is adopted as a physical model of oxide layer. The universal kinetic equation describes various oxidation laws of type h(t) such as linear, parabolic and higher-order than parabolic, transition from one oxidation law to another and acceleration of oxidation, including sudden acceleration. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1113 / 1131

页数：19