Complex concentrated alloys for high temperature structural applications
| Project start: | 01.01.2019 |
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| Project end: | 31.12.2021 |
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| Programme: | VEGA |
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| Project number: | 2/0074/19 |
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| Institute position in the project: | The only one project investigator |
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| Project leader: | Juraj Lapin |
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The project is focused on the basic research of complex concentrated alloys (CCAs) for high temperature structural applications that will be strengthened by intermetallic precipitates or continuous intermetallic phases. The proposal deals with formation and stability of intermetallic phases in a disordered solid solution based on CoCrFeNi with an equimolar concentration of principal elements which will be alloyed with additions of Al, Ti, Nb and Zr. The main emphasis is given to elucidation of the fundamental aspects of microstructure formation and microstructure stability during high temperature loading. The attention will be paid to explanation of the effect of alloying elements on phase transformations, phase transformation temperatures, precipitation and eutectic growth of intermetallic phases in new CCAs. The relationships between microstructure and mechanical properties will be elucidated. Numerical calculations of the deformation behaviour by finite element method will be supported experimentally.