Remarks on the weldability problem of the ferritic steels

The thermal – mechanical interactions in welding process of the ferritic steels are described. The definition of numerical analysis of weldability and short discussion on this problem has been presented. Furthermore the actual development of correlations between: thermal field – microstructure and mechanical properties are characterised. It enables to establish the methodology for steels weldability investigation on basis of current calculation standards. Finally, some remarks about possibilities of application of the neural networks methods for estimation of weldability of ferritic steels are presented.