Stability of phases at high temperatures in CoRe based alloys being developed for ultra-high temperature applications

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F12%3A00388190" target="_blank" >RIV/61389005:_____/12:00388190 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/340/1/012052" target="_blank" >http://dx.doi.org/10.1088/1742-6596/340/1/012052</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/340/1/012052" target="_blank" >10.1088/1742-6596/340/1/012052</a>

Result language
angličtina
Original language name
Stability of phases at high temperatures in CoRe based alloys being developed for ultra-high temperature applications
Original language description
In the development of new high-temperature alloys for gas turbine applications various candidates are under consideration. This contribution deals with a CoRe based alloy strengthened by Cr23C6 type carbide and Cr2Re3 type phase precipitations (here designated as CoRe-1 alloy). High-temperature cycling experiments show how the influence of heating, cooling and the hcp <-> fcc phase transformation of the Co-matrix on the stability of these phases. Neutron diffraction experiments with high-temperature vacuum furnace show that Cr23C6 carbides starts to dissolve around 1100 degrees C and above 1250 degrees C are almost completely dissolved. On the other hand sigma phase is still present at 1300 degrees C. This contribution describes the evolution of the different phases during the heating and cooling cycles which are repeated two times. Further, the influence of boron addition to CoRe-1 alloy was studied for samples in the first heating/cooling cycle. A newly developed tensile rig was also
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/FR-TI1%2F378" target="_blank" >FR-TI1/378: Application of neutron scattering in industry</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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