Current status of Co-Re-based alloys being developed to supplement Ni-based superalloys for ultra-high temperature applications in gas turbines

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F15%3A00446864" target="_blank" >RIV/61389005:_____/15:00446864 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Current status of Co-Re-based alloys being developed to supplement Ni-based superalloys for ultra-high temperature applications in gas turbines

Original language description

To meet the future demands of gas turbines new materials with higher application temperatures are needed. Addition of Re increases the melting temperature of Co-based alloys and they show promise to supplement Ni-superalloys for ultra high temperature applications. The Co-Re alloy development strategy is first discussed here briefly. Unlike single crystal Ni-superalloys with the gamma-gamma' structure, the Co-Re alloys have complex microstructure with many different phases present in diverse morphology.MC type carbides are the main hardening precipitate particularly used for high temperature creep resistance. Further, Cr and Si additions in Co-Re alloys provide oxidation resistance. Designing optimal microstructure and ensuring its stability is an essential task of high temperature alloy development. In our alloy development program neutron and synchrotron measurements are extensively used. It allows monitoring the microstructure evolution in-situ at high temperatures and thereby help

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Kovové materiály

ISSN

0023-432X

e-ISSN

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Volume of the periodical

53

Issue of the periodical within the volume

4

Country of publishing house

SK - SLOVAKIA

Number of pages

8

Pages from-to

287-294

UT code for WoS article

000358270700013

EID of the result in the Scopus database

2-s2.0-84937208227