On Local Phase Equilibria and the Appearance of Nanoparticles in the Microstructure of Single-Crystal Ni-Base Superalloys
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00464788" target="_blank" >RIV/68081723:_____/16:00464788 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/adem.201600237" target="_blank" >http://dx.doi.org/10.1002/adem.201600237</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adem.201600237" target="_blank" >10.1002/adem.201600237</a>
Alternative languages
Result language
angličtina
Original language name
On Local Phase Equilibria and the Appearance of Nanoparticles in the Microstructure of Single-Crystal Ni-Base Superalloys
Original language description
High-resolution characterization techniques are combined with thermodynamic calculations (CALPHAD) to rationalize microstructural features of single crystal Ni-base superalloys. Considering the chemical compositions of dendritic and interdendritic regions one can explain differences in γ-volume fractions. Using thermodynamic calculations one can explain, why γ-nanoparticles are observed in the central regions of large cuboidal γ-particles and why tertiary γ-nanoparticles form in the γ-channels. The chemical compositions of the γ-channels and of the newly formed γ-particles differ because of the Gibbs–Thomson pressure which acts on the small particles. With increasing size of secondary γ-particles, their shape changes from spherical to cuboidal. Some general thermodynamic aspects including the temperature dependencies of the Gibbs free energy G, the enthalpy H, and the entropy S and site occupancies in the ordered L12 (γ) phase are considered. The importance of cooling rate after homogenization is discussed.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA14-22834S" target="_blank" >GA14-22834S: Phase Stability and Plasticity in Medium-to-High-Entropy Alloys</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Engineering Materials
ISSN
1438-1656
e-ISSN
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Volume of the periodical
18
Issue of the periodical within the volume
9
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
1556-1567
UT code for WoS article
000382986100005
EID of the result in the Scopus database
2-s2.0-84978880196