Speaker
Description
Many leading laboratories worldwide are currently using high pressure torsion (HPT) as a method for creating new materials by mixing metallic components in solid state. At the initial stage of deformation, mechanical mixing is carried out exclusively by changing the shape of the constituent components without any interaction between them at the atomic level. This mechanical mixing is called stirring. By itself, "good" stirring does not guarantee that at the next stages of mixing the components will form new alloys, but if "poor" stirring occurs, then mixing is also improbable. That is why a fundamental study of stirring is of prime importance. The talk will consider an example of the quantitative characterisation of the degree of stirring based on the modified Gibbs coefficient. In addition, the main features of solid state stirring will be analysed.
Acknowledgements
Authors acknowledge support from The Volkswagen Foundation through the Cooperation Projects Az.:97 751 "Trilateral Partnerships between Scholars and Scientists from Ukraine, Russia and Germany".
| Speaker Country | Germany |
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