Generalization of information on phase diagrams of binary hafnium systems

Abstract

Prospects of applying the analogy principle when investigating binary hafnium compounds are considered. The classification of binary hafnium compounds by the main distinctive features of their phase diagrams is developed using a taxonomic approach. Seven uniform groups of compounds under consideration are distinguished and distinctive features of phase diagrams of each group are determined. The rationality of a two dimensional metric, the application of which ensures obtaining qualitative evaluations of similarity of various diagrams and reveals the analog compounds, is substantiated. The results of classification can be used when substantiating the compositions of certain basic hafnium alloys and master alloys. Fig. 1. Results of a taxonomic classification of phase diagrams of binary systems of hafnium. Solid lines mark the groups of analog diagrams and dashed lines mark the complexes of diagrams with quantitative correspondences.