Institute of Physics of Materials AS CR, v. v. i. > Projects > Analysis of cyclic stress components in advanced high-temperature resistant structural materials
Analysis of cyclic stress components in advanced high-temperature resistant structural materials
| Investigator | prof. RNDr. Jaroslav Polák, DrSc., dr. h. c. |
| Number of Project | P204/11/1453 |
| Agency | Grantová agentura České republiky |
| Duration | 2010-12-31 - 2013-12-30 |
Anotace |
| The project is aimed to obtain relevant information about the high cyclic deformation resistance and fatigue life of cyclically deformed nickel-based superalloys Inconel at room and particularly at elevated temperatures. These superalloys are used primarily in power and aircraft industry for high-temperature applications up to 900°C. The project is focused on the analysis of the cyclic stress and its internal and effective components in dependence on strain amplitude and temperature. Simultaneously, using neutron diffraction and TEM, the internal structure of the matrix and the strengthening phase and, using AFM, the evolution of the surface relief of the fatigued specimens will be studied. Project aims to find the correlation between the cyclic plasticity level and the structure at elevated temperatures. The obtained results will contribute to the deepening of the knowledge of advanced high-temperature resistant structural materials with the aim to reach the optimum properties. |
