Method for adjusting microstructure of amorphous solid alloy by utilizing configuration and number of melt atomic clusters

Abstract

The invention discloses a method for adjusting the microstructure of amorphous solid alloy by utilizing the configuration and number of melt atomic clusters. The method comprises the following steps:carrying out analog calculation on the configuration and number of the atomic clusters in alloy melt, to be specific, according to the components of to-be-prepared alloy, calculating the configurationand number of atomic clusters in the alloy melt at different temperatures, and obtaining a calculating result that the configuration and number of the atomic clusters vary with the temperatures; carrying out superheat treatment on the alloy melt, to be specific, choosing required configuration and number of the atom clusters according to the calculating result, determining that the temperature corresponding to the chosen configuration and number of the atomic clusters is the superheat treatment temperature of the alloy melt, and carrying out heat preservation on the alloy melt at the superheat treatment temperature so as to obtain the superheat-treated alloy melt; and carrying out rapid solidification, to be specific, carrying out rapid solidification on the superheat-treated alloy melt to obtain the amorphous solid alloy. The invention creates a novel scheme for the controllable preparation of the microstructure of the amorphous solid alloy.

Description

Technical field [0001] The invention relates to the technical field of preparation of metallic functional materials, in particular to a method for regulating the microstructure of an amorphous solid alloy by using the configuration and quantity of melt atomic clusters. Background technique [0002] Atoms are the smallest unit that constitutes a material, and relatively stable microscopic or submicroscopic aggregates composed of multiple atoms through chemical bonding are called atomic clusters. The structural characteristics of atomic clusters are short-range order and long-range disorder. Atomic clusters are the basic units constituting the alloy melt, and the alloy melt contains a large number of atomic clusters. Since the amorphous solid alloy retains the microstructure characteristics of the alloy melt, the amorphous solid alloy is also composed of atomic clusters. The distribution of atoms determines the structural characteristics of atomic clusters, and different atomic d...

AI Technical Summary

Problems solved by technology

[0003] Since the atomic cluster structure in the alloy melt is complex and diverse, and changes with the temperature of the melt, there is no experimental technique that can directly measure the atomic cluster structure of the amorphous solid alloy and the melt, and obtain the information of the atomic cluster structure

In summary, although the microstructure of amorphous solid alloys has an important impact on their macroscopic properties, adjusting the microstructure of amorphous alloys is one of the important ways to improve the performance of amorphous solid alloys. The microstructure of amorphous alloys still lacks effective technological methods, which has become one of the key and important scientific and technological problems that have not been resolved in the field of amorphous solid alloys.

The main reason for the inability to effectively control the microstructure of amorphous alloys is the lack of methods to control the atomic cluster structure of the melt

Due to the lack of technical methods to control the atomic cluster structure of the melt, it is impossible to solidify the desired atomic cluster structure of the melt into the amorphous alloy

Images