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

Kód výsledku v 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>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Kovové materiály

ISSN

0023-432X

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

8

Strana od-do

287-294

Kód UT WoS článku

000358270700013

EID výsledku v databázi Scopus

2-s2.0-84937208227