A Review of Metallic Materials Corrosion

Abstract The present manuscript presents a theoretical study for the corrosion process. Corrosion processes are primed and stimulated in 60% of cases by chemical and biological elements. One of the most used biological elements are: bacteria, actinomycetes, microscopic fungi, algae. Corrosion of a solid body results from the transformation of structural bonds in that body. Less than certain influences (water, oxygen, light, etc.) the atom - which is practically neutral - can lose or gain electrons and it is ionized. Brake pads are affected of corrosion process. The conceptions and mathematical symbols serve as the models building blocks. Authors like, Boz M, and other authors demonstrate in their researches that starting with the concept of number, where every mathematical object is a mathematical model. In practice it is not possible to reproduce some experimental, theoretical conditions related to corrosion processes. These processes are therefore, to some extent, different in terms of the applicability of theoretical laws. From a thermodynamic point of view, metals are not stable and due to corrosion, metals tend to return to the stable form of oxides with the help of oxygen and moisture in the air. For this each metal requires certain ionization energy. When establishing the mathematical model, those characteristics of the modeling object are highlighted, which, on the one hand, are informative, and on the other hand, they admit the mathematical form review.