| Autor: |
Koštial, Pavel, Jonšta, Petr, Kopal, Ivan, Koštialová Jančíková, Zora, Špička, Ivo, Kulová, Taťána, Vlčková, Irena |
| Zdroj: |
Diffusion and Defect Data Part A: Defect and Diffusion Forum; November 2017, Vol. 379 Issue: 1 p1-11, 11p |
| Abstrakt: |
The paper deals with the influence of microstructural changes of the nickel superalloy (NiS) on heat transport changes in MAR-M247. The dissolving annealing within the temperature interval of 900 – 1240°C and cooling in water has been applied to enhance structural changes. It has been shown that the narrow connection between the γ’ phase morphology changes, as well as values of density, thermal conductivity and specific heat capacity. In the dissolving annealing process, the γ’ particles change in certain cycles from fine to rough and back to fine one. Obtained results of changes of thermal conductivity, density and specific heat capacity correlate with image analysis and electron microscopy observation. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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