What is the Further Fate of the Existing Binary Phase Diagrams?

Ustinovshikov Y

Published on: 2023-09-22

Abstract

The article raises the question of what to do with one of the main achievements of metal science - binary phase diagrams. These diagrams play a key role in the science of alloys and therefore their reliability must be complete. However, the discovery of the "ordering-separation" phase transition, which showed that in binary alloys at certain temperatures the sign of the chemical interatomic interaction changes, forces us to reconsider our ideas about those areas on the diagram in which structural changes occur by diffusion. This revision is carried out in this article. The author does not give an unambiguous answer about what to do with such areas on the phase diagrams, believing that this should be decided by the entire community of metallurgists. However, he calls to analyze the current situation and decide.