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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F14%3A00435004%21RIV15-AV0-68081723
rdf:type
n7:Vysledek skos:Concept
dcterms:description
Polycrystalline nickel-base superalloy MAR-M247 is used for high temperature applications requiring excellent combination of fatigue properties, creep resistance and surface stability. These superior high temperature characteristics derive from the microstructure which habitually consists of face centred cubic matrix γ and precipitate γ´ (L12 type ordered structure). In the present work, the high temperature low cycle fatigue behaviour of cast nickel-base superalloy MAR-M247 in as received condition and in hot isostatically pressed (HIP) condition was studied. The microstructure of the materials is characterized by dendritic grains, carbides and casting defects. Distribution and size of defects in both materials were studied. Isothermal low cycle fatigue (LCF) tests were performed on cylindrical specimens under total strain control at 900°C in air. Cyclic stress–strain response and fatigue life of both materials were assessed. Beneficial effects of HIP process on cyclic stress-strain and fatigue life curves are discussed. Polycrystalline nickel-base superalloy MAR-M247 is used for high temperature applications requiring excellent combination of fatigue properties, creep resistance and surface stability. These superior high temperature characteristics derive from the microstructure which habitually consists of face centred cubic matrix γ and precipitate γ´ (L12 type ordered structure). In the present work, the high temperature low cycle fatigue behaviour of cast nickel-base superalloy MAR-M247 in as received condition and in hot isostatically pressed (HIP) condition was studied. The microstructure of the materials is characterized by dendritic grains, carbides and casting defects. Distribution and size of defects in both materials were studied. Isothermal low cycle fatigue (LCF) tests were performed on cylindrical specimens under total strain control at 900°C in air. Cyclic stress–strain response and fatigue life of both materials were assessed. Beneficial effects of HIP process on cyclic stress-strain and fatigue life curves are discussed.
dcterms:title
EFFECT OF HIP ON LOW CYCLE FATIGUE OF MAR-M247 AT 900°C EFFECT OF HIP ON LOW CYCLE FATIGUE OF MAR-M247 AT 900°C
skos:prefLabel
EFFECT OF HIP ON LOW CYCLE FATIGUE OF MAR-M247 AT 900°C EFFECT OF HIP ON LOW CYCLE FATIGUE OF MAR-M247 AT 900°C
skos:notation
RIV/68081723:_____/14:00435004!RIV15-AV0-68081723
n3:aktivita
n13:P n13:I
n3:aktivity
I, P(EE2.3.30.0063)
n3:dodaniDat
n16:2015
n3:domaciTvurceVysledku
n6:1599186 Škorík, Viktor n6:7704968
n3:druhVysledku
n9:D
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
13330
n3:idVysledku
RIV/68081723:_____/14:00435004
n3:jazykVysledku
n11:eng
n3:klicovaSlova
MAR-M-247; High temperature; Low cycle fatigue
n3:klicoveSlovo
n4:MAR-M-247 n4:Low%20cycle%20fatigue n4:High%20temperature
n3:kontrolniKodProRIV
[032770D47EFF]
n3:mistoKonaniAkce
Brno
n3:mistoVydani
Ostrava
n3:nazevZdroje
METAL 2014: 23rd International Conference on Metallurgy and Materials
n3:obor
n19:JL
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:projekt
n8:EE2.3.30.0063
n3:rokUplatneniVysledku
n16:2014
n3:tvurceVysledku
Obrtlík, Karel Hrbáček, K. Šulák, Ivo Škorík, Viktor
n3:typAkce
n10:WRD
n3:zahajeniAkce
2014-05-21+02:00
s:numberOfPages
6
n20:hasPublisher
Tanger Ltd
n12:isbn
978-80-87294-52-9