Please use this identifier to cite or link to this item: doi:10.22028/D291-31920
Title: Structural evolution and strain induced mixing in Cu-Co composites studied by transmission electron microscopy and atom probe tomography
Author(s): Bachmaier, Andrea
Aboulfadl, Hisham Ahmed Nabil
Pfaff, Marina
Mücklich, Frank
Motz, Christian
Language: English
Title: Materials Characterization
Volume: 100 (2015)
Pages: 178-191
Publisher/Platform: Elsevier
Year of Publication: 2014
Free key words: High-pressure torsion
Atom probe tomography
Transmission electron microscopy
Mechanical alloying
DDC notations: 500 Science
540 Chemistry
621.3 Electrical engineering, electronics
660 Chemical engineering
Publikation type: Journal Article
Abstract: A Cu-Co composite material is chosen as a model system to study structural evolution and phase formations during severe plastic deformation. The evolving microstructures as a function of the applied strain were characterized at the micro-, nano-, and atomic scale-levels by combining scanning electron microscopy and transmission electron microscopy including energy-filtered transmission electron microscopy and electron energy-loss spectroscopy. The amount of intermixing between the two phases at different strains was examined at the atomic scale using atom probe tomography as complimentary method. It is shown that Co particles are dissolved in the Cu matrix during severe plastic deformation to a remarkable extent and their size, number, and volume fraction were quantitatively determined during the deformation process. From the results, it can be concluded that supersaturated solid solutions up to 26 at.% Co in a fcc Cu-26 at.% Co alloy are obtained during deformation. However, the distribution of Co was found to be inhomogeneous even at the highest degree of investigated strain.
DOI of the first publication: 10.1016/j.matchar.2014.12.022
Link to this record: urn:nbn:de:bsz:291--ds-319201
ISSN: 1044-5803
Date of registration: 18-Aug-2020
Description of the related object: Supplementary Material
Related object:
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Christian Motz
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

Files for this record:
File Description SizeFormat 
1-s2.0-S1044580314004033-main.pdfStructural evolution and strain induced mixing in Cu–Co composites studied by transmission electron microscopy and atom probe tomography4,6 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons