Study of titanium oxidation kinetics at temperature above polymorphic transformation

The object of research is the analytical description phenomena in near-surface layer, which are caused by interaction titanium with oxygen at high temperatures. These temperatures that exceed polymorphic transformation metal. High-temperature oxidation gives products unique performance properties. Of course, such characteristics determined, first all, state layer. Therefore, an understanding processes will make it possible to predict layer after heat treatment. However, date, no unified approach has been created describe mechanism and kinetics high-temperature Indeed, most existing approaches nature bulk Some scientific papers oxidation, taking into account only formation growth oxide layers. simultaneously formation, a diffusion zone formed, significantly affects kinetics. today one problematic areas take place In this work, titanium, addition taken account. zone, under influence structural phase transformations, solid solutions formed alpha beta phases. This made additional factors thereby more accurately titanium. As result calculations, thickness given depending on concentration duration And also dependences displacement boundary oxide-diffusion system equations for calculating ratio components developed. Thanks proposed approach, be calculate sizes interphase boundaries basis temperature-time parameters form hardened certain functional properties