TITLE:
Nucleation of New Phases in Alloy: A Long Way to True
AUTHORS:
Yuri Ustinovshikov
KEYWORDS:
Alloys, Microstructure, Electronic Structure, Phase Transformation, Transmission Electron Microscopy
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.12 No.10,
October
28,
2022
ABSTRACT: The article presents our generalization of electron microscopy resultsthatgot for binary and some ternary alloys based on Ni. These results are considered as the basis for the conclusion that chemical bonds between atoms are realized in binary alloys according to the principle of pair-wise chemical interaction. In ternary alloys, such a process begins with the separation of the liquid alloy into diffusion micro-pairs, inside which particles of a new phase are subsequently formed. The latter circumstance allows us to consider the liquid state of the alloy as the initial stage of the formation of a new phase. That formation of diffusion micro-pairs (and particles of a new phase inside them) occurs because of the presence of alloys, along with a metallic bond, of the ionic and covalent components of a strong chemical bond, which exist at all temperatures of the condensed state. The article shows what exactly needs to be done so that such a branch of science as the science of alloys can get rid of the empirical approach when creating new alloys.