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 Cu–Co Nano-composite Microstructure 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 hdl:20.500.11880/29537 http://dx.doi.org/10.22028/D291-31920 |
ISSN: | 1044-5803 |
Date of registration: | 18-Aug-2020 |
Description of the related object: | Supplementary Material |
Related object: | http://dx.doi.org/10.1016/j.matchar.2014.12.022 |
Faculty: | NT - Naturwissenschaftlich- Technische Fakultät |
Department: | NT - Materialwissenschaft und Werkstofftechnik |
Professorship: | NT - Prof. Dr. Christian Motz |
Collections: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
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1-s2.0-S1044580314004033-main.pdf | Structural evolution and strain induced mixing in Cu–Co composites studied by transmission electron microscopy and atom probe tomography | 4,6 MB | Adobe PDF | View/Open |
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