Thermal effects in the crystallization and melting of alloys with unlimited solubility of components

Authors

  • Евгения Андреевна Сюткина (Evgenia A. Syutkina) Perm State University
  • Лев Волькович Спивак (Lev V. Spivak) Perm State University

DOI:

https://doi.org/10.17072/1994-3598-2019-1-47-51

Keywords:

кристаллизация, дифференциальная сканирующая калориметрия, двухкомпонентные сплавы

Abstract

High-resolution differential scanning calorimetry (DSC) has been used to study the crystallization processes of two-component alloys with unlimited solubility of the components that form them. It is shown that in all cases, immediately below the liquidus line, a jump in the release of crystallization heat that is noticeable in magnitude and speed is recorded. It is assumed that the observed effects are associated with the formation of a significant amount of local microvolumes (concentration fluctuations) in the liquid when the liquidus line is approaching the liquidus line, enriched with the component leading to crystallization. Their appearance precedes the onset of the processes of spontaneous formation of a large number of crystals in a noticeable volume of the liquid phase.

References

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Published

2019-05-24

How to Cite

Сюткина (Evgenia A. Syutkina) Е. А., & Спивак (Lev V. Spivak) Л. В. (2019). Thermal effects in the crystallization and melting of alloys with unlimited solubility of components. Bulletin of Perm University. Physics, (1). https://doi.org/10.17072/1994-3598-2019-1-47-51

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Section

Regular articles

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