Tailoring microstructure and properties of CuZrAl(Nb) metallic-glass?crystal composites and nanocrystalline alloys obtained by flash-annealing

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F24%3A43898300" target="_blank" >RIV/44555601:13520/24:43898300 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1005030224001713?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1005030224001713?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmst.2023.12.065" target="_blank" >10.1016/j.jmst.2023.12.065</a>

Result language
angličtina
Original language name
Tailoring microstructure and properties of CuZrAl(Nb) metallic-glass?crystal composites and nanocrystalline alloys obtained by flash-annealing
Original language description
Metallic-glass?crystal composites of Cu47.5Zr47.5Al5 and Cu10Zr7-reinforced Cu46.5Zr48Al4Nb1.5 nanocrystalline materials are obtained by flash-annealing of metallic-glass ribbons. In situ high-energy X-ray diffraction reveals the deformation mechanism of the alloys upon tensile loading. For the composites and nanocrystalline materials, a small remaining amount of the metallic glass and/or the presence of the Cu10Zr7 phase significantly increase the value of yield stress while maintaining good tensile ductility. In general, the obtained materials exhibit a reversible martensitic transformation (MT) between the B2 CuZr and B19?/B33 phases during tensile loading and unloading. However, the reversibility of MT depends on the alloy composition, crystalline phases, and the number of (un)loading cycles. Serrated-like fluctuations on tensile stress-strain curves and a sign of twinning in the Cu10Zr7 crystals are found after yielding in the Cu10Zr7-reinforced Cu46.5Zr48Al4Nb1.5 nanocrystalline materials. Electrochemical measurements show that Cu46.5Zr48Al4Nb1.5 nanocrystalline material has good corrosion resistance in NaCl and H2SO4 solutions, even better than the parent metallic glasses in some aspects.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/LM2023066" target="_blank" >LM2023066: Nanomaterials and Nanotechnologies for Environment Protection and Sustainable Future</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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