Avaliação da equação teórica para o cálculo da espessura da camada cementada no tratamento termoquímico de cementação sólida do aço

Abstract

Thermochemical treatments of materials are procedures that aim, by partially modifying the chemical composition of a given material, to obtain or change certain mechanical characteristics of the same. In the present work, an analysis of published works and articles was carried out in which the thermochemical process of solid cementation was carried out. With the results obtained by these works, a collection was made comparing the experimental results obtained and the theoretical results that would be obtained for the thickness of the cemented layer, using a mathematical equation that the literature considers to estimate this the cemented layer. that, in general, in the comparison between what was theoretically stipulated by means of mathematical equation and what was found through the cementation experiments, very divergent values were found. The experimental cemented layer showed greater depth than the theoretical cemented layer. The present work determined an average correction factor for the equation that allows estimating a theoretical cemented layer. Finally, the solid cementation process has been concluded and is indicated for cases in which it is not necessary to have a very strict control for the thickness of the cemented layer.