Numerical modelling of the solar cladding process

The ability of Concentrated Solar Energy for modifying surface properties of steels has been studied during the last two decades, and its main advantages and disadvantages have been stated. However, additional investigations involving the modelling of these processes must be considered, with the scope of developing any practical or industrial application. This work deals with the thermal modelling of the solar cladding process of AISI 316 austenitic stainless steel over AISI 1026 low carbon steel by means of the Finite Element Method, considering temperature dependence of thermophysical properties, latent heat, convection and radiation losses, etc. A trial–error procedure permits to fit simulations to experimental results, and validation of the numerical results is performed taking into account experimental temperature measurements and microstructure evaluation. Although some limitations are observed, the model represents in a precise manner the real temperatures in the process, providing the basis for a subsequent optimization of the process.