Multi-scale investigation of microstructure and texture evolution during equal channel angular pressing of silver

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Satyam Suwas - , Indian Institute of Science Bangalore, TUD Dresden University of Technology (Author)
  • Werner Skrotzki - , Institute of Solid State and Materials Physics, TUD Dresden University of Technology (Author)
  • Nils Scheerbaum - , TUD Dresden University of Technology (Author)
  • Thierry Grosdidier - , Université de Lorraine (Author)
  • Jean Jacques Fundenberger - , Université de Lorraine (Author)
  • Laszlo S. Tóth - , Université de Lorraine (Author)
  • Heinz Günter Brokmeier - , Clausthal University of Technology, Helmholtz-Zentrum Hereon (Author)

Abstract

A multi-scale investigation was carried out on pure silver subjected to equal channel angular pressing up to 3 passes. Microstructure and texture were examined using scanning and transmission electron microscopy as well as diffraction of neutron and high-energy synchrotron radiation. The evolution of the deformation substructure in the material is in accordance with its low stacking fault energy followed by restoration mechanisms leading to overall microstructural refinement. The restoration mechanism sets in as early as after 3 passes. Twinning involved in the deformation process supports grain refinement through mechanisms of dynamic recrystallization involving strain-induced boundary migration contributing to a steady-state grain size. The global texture, as measured by neutron diffraction, forms through a twin-assisted deformation mechanism. The texture is found heterogeneous through thickness. Graphical abstract: (Figure presented.)

Details

Original languageEnglish
Pages (from-to)5698-5716
Number of pages19
JournalJournal of materials science
Volume59
Issue number14
Publication statusPublished - Apr 2024
Peer-reviewedYes