Unveiling the mechanism of deformation‑induced supersaturation

Karoline S. Kormout, Lorenz Romaner, Daniel Scheiber, Stefan Zeiler, Reinhard Pippan, Andrea Bachmaier

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A Cu-6at%Ag cast alloy was deformed by means of high-pressure torsion to different applied strain levels until a steady-state regime is reached. The continuous structural refinement is attended by the successive dissolution of the Ag precipitates in the Cu matrix. The results show that the Ag regions need to fall below a phase size of ~ 5 nm to fully dissolve. Atomistic calculations indicate that the final dissolution can be explained based on the enthalpy difference between the solid solution and layered systems which are in between the coherent and semi-coherent structure. These findings are supported by detailed microstructural investigations.
Original languageEnglish
Article number15247
Number of pages7
JournalScientific reports (e-only)
Volume2024
Issue number14
DOIs
Publication statusPublished - 2 Jul 2024

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