Publication detail

The Microstructure Changes in IN713LC during the Creep Exposure

POSPÍŠILOVÁ, S. KIANICOVÁ, M. VLASÁK, T. HUTAŘ, P. PODRÁBSKÝ, T. HAKL, J.

Czech title

Mikrostrukturní změny ve slitině IN713LC během creepu

English title

The Microstructure Changes in IN713LC during the Creep Exposure

Type

journal article - other

Language

en

Original abstract

Nickel-based creep resisting alloys (strengthened by Ni3Al,Ti) are the basic materials for high-temperature constructional parts in aircraft engines and energy units. These parts are exposed to combined effects of mechanical stresses, high temperature and dioxide-corrosion conditions. The microstructure changes of cast polycrystalline Ni-based superalloy IN713LC after creep exposure were studied. Three specimens with three different diameters were used for creep tests. The degradation stage (damage parameter ?) was determined for all parts of specimens. Individual parts of specimens were metallographic observed and analyzed by image analysis after rupture. The results were compared with model of stress distribution in the specimen with potential damage in the centre of the specimen.

Czech abstract

Niklové superslitiny zpevněné vytvrzující fází patří mezi základní materiály používané pro vysokoteplotně namáhané konstrukční díly leteckých motorů a energetických jednotek. Tyto části jsou vystaveny kombinovaným účinkům mechanického namáhání, vysokým teplotám a oxidačním-korozním podmínkách. Byly studovány mikrostrukturní změny polykrystalické niklové superslitiny IN713LC po creepové expozici. Pro creepové testy byly použity tři vzorky se třemi různými průměry. Pro každý průměr každého vzorku byl stanoven parametr degradace. Jednotlivé části vzorků po creepovém zatěžování byly metalograficky studovány a analyzovány pomocí obrazové analýzy. Výsledky byly porovnány s modelem rozdělení napětí ve vzorku.

English abstract

Nickel-based creep resisting alloys (strengthened by Ni3Al,Ti) are the basic materials for high-temperature constructional parts in aircraft engines and energy units. These parts are exposed to combined effects of mechanical stresses, high temperature and dioxide-corrosion conditions. The microstructure changes of cast polycrystalline Ni-based superalloy IN713LC after creep exposure were studied. Three specimens with three different diameters were used for creep tests. The degradation stage (damage parameter ?) was determined for all parts of specimens. Individual parts of specimens were metallographic observed and analyzed by image analysis after rupture. The results were compared with model of stress distribution in the specimen with potential damage in the centre of the specimen.

Keywords in Czech

creep, parametr poškození, mikrostrukturní změny, rafting, obrazová analýza

Keywords in English

creep, damage parameter, microstructure changes, rafting, image analysis

RIV year

2011

Released

01.01.2011

Publisher

TransTech Publication

Location

Switzerland

ISSN

1022-6680

Journal

Advanced Materials Research

Volume

278

Number

1

Pages from–to

120–125

Pages count

6

BIBTEX


@article{BUT49976,
  author="Simona {Hutařová} and Marta {Kianicová} and Tomáš {Vlasák} and Pavel {Hutař} and Tomáš {Podrábský} and Jan {Hakl},
  title="The Microstructure Changes in IN713LC during the Creep Exposure",
  journal="Advanced Materials Research",
  year="2011",
  volume="278",
  number="1",
  month="January",
  pages="120--125",
  publisher="TransTech Publication",
  address="Switzerland",
  issn="1022-6680"
}