Please use this identifier to cite or link to this item: doi:10.22028/D291-31797
Title: Microstructure Evolution and Mechanical Stability of Supersaturated Solid Solution Co-Rich Nanocrystalline Co-Cu Produced by Pulsed Electrodeposition
Author(s): Pratama, Killang
Barrirero, Jenifer
Mücklich, Frank
Motz, Christian
Language: English
Title: Materials
Volume: 13
Issue: 11
Publisher/Platform: MDPI
Year of Publication: 2020
Free key words: nanocrystalline Co-Cu
spinodal decomposition
micro mechanics
mechanical stability
DDC notations: 620 Engineering and machine engineering
Publikation type: Journal Article
Abstract: Thick films of supersaturated solid solution nanocrystalline Co-Cu (28 at.% Cu) were synthesized through the pulsed electrodeposition technique. Microstructural changes of nanocrystalline Co-Cu were intensively studied at various annealing temperatures. Annealing at 300 °C results in a spinodal decomposition within the individual grains, with no grain coarsening. On the other hand, distinct phase separation of Co-Cu is detected at annealing temperatures beyond 400 °C. Static micro-bending tests show that the nanocrystalline Co-Cu alloy exhibits a very high yield strength and ductile behavior, with no crack formation. Static micro-bending tests also reported that a large plastic deformation is observed, but no microstructure change is detected. On the other hand, observation on the fatigue resistance of nanocrystalline Co-Cu shows that grain coarsening is observed after conducting the cyclic micro-bending test.
DOI of the first publication: 10.3390/ma13112616
Link to this record: urn:nbn:de:bsz:291--ds-317971
hdl:20.500.11880/29461
http://dx.doi.org/10.22028/D291-31797
ISSN: 1996-1944
Date of registration: 24-Jul-2020
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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