Please use this identifier to cite or link to this item:
doi:10.22028/D291-31919
Title: | Phase decomposition and nano structure evolution of metastable nanocrystalline Cu-Co solid solutions during thermal treatment |
Author(s): | Bachmaier, Andrea Stolpe, Moritz Müller, Timo Motz, Christian |
Language: | English |
Title: | IOP Conference Series: Materials Science and Engineering |
Publisher/Platform: | IOP Publishing |
Year of Publication: | 2015 |
Title of the Conference: | 36th Risø International Symposium on Materials Science |
Free key words: | nanocrystalline materials Cu-Co alloy materials phase decomposition thermal stability non-isothermal annealing isothermal annealing |
DDC notations: | 500 Science 530 Physics 540 Chemistry 600 Technology 660 Chemical engineering |
Publikation type: | Conference Paper |
Abstract: | Nanocrystalline and ultrafine-grained Cu100-xCox (x = 26 and 76) solid solutions have been prepared by severe plastic deformation (SPD) of elemental powder mixtures. For both concentrations a supersaturated solid solution fcc phase was identified after the deformation process with grain sizes of less than 50 nm for Co rich solutions and around 100 nm for Cu rich solutions. Additionally, synthesis of nanocrystalline materials in the Cu-Co alloy system by electrodeposition has been conducted. Microstructural characterization by scanning and transmission electron microscopy, differential scanning calorimetry, and microhardness measurements are used to investigate the structural evolution, the thermal stability and mechanical properties of the different nanocrystalline Cu-Co alloy materials during isothermal and non-isothermal annealing. In this study it is shown that the phase decomposition of the metastable Cu-Co solid solutions has a significant influence on their thermal stability, which can be linked to the underlying microstructure that forms during annealing. |
DOI of the first publication: | 10.1088/1757-899X/89/1/012017 |
Link to this record: | urn:nbn:de:bsz:291--ds-319193 hdl:20.500.11880/29536 http://dx.doi.org/10.22028/D291-31919 |
Date of registration: | 18-Aug-2020 |
Notes: | IOP Conference Series: Materials Science and Engineering, 89 (2015), 012017 |
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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Bachmaier_2015_IOP_Conf._Ser.__Mater._Sci._Eng._89_012017.pdf | Phase decomposition and nano structure evolution of metastable nanocrystalline Cu-Co solid solutions during thermal treatment | 1,49 MB | Adobe PDF | View/Open |
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