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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F14%3A00435146%21RIV15-MPO-68081723
rdf:type
n6:Vysledek skos:Concept
dcterms:description
The nickel-based superalloy MAR-M 247 was experimentally studied in the area of high-cycle fatigue at temperatures 650, 800 and 900 °C. The alloy, a cast polycrystalline material processed by hot isostatic pressing (HIP), was subjected to symmetrical cyclic loading. The fracture surfaces of specimens were studied by scanning electron microscopy from the perspective of the influence of temperature on the fatigue damage mechanism and fatigue crack initiation. The extent of Stage I of crystallographic fatigue crack propagation and non-crystallographic Stage II differs with various test temperatures. Fatigue crack initiation sites were predominantly shrinkage pores inherited from casting. The general description of governing mechanisms of the fatigue crack initiation and the crack propagation are proposed. The nickel-based superalloy MAR-M 247 was experimentally studied in the area of high-cycle fatigue at temperatures 650, 800 and 900 °C. The alloy, a cast polycrystalline material processed by hot isostatic pressing (HIP), was subjected to symmetrical cyclic loading. The fracture surfaces of specimens were studied by scanning electron microscopy from the perspective of the influence of temperature on the fatigue damage mechanism and fatigue crack initiation. The extent of Stage I of crystallographic fatigue crack propagation and non-crystallographic Stage II differs with various test temperatures. Fatigue crack initiation sites were predominantly shrinkage pores inherited from casting. The general description of governing mechanisms of the fatigue crack initiation and the crack propagation are proposed.
dcterms:title
High cycle fatigue of nickel-based superalloy MAR-M 247 at high temperatures High cycle fatigue of nickel-based superalloy MAR-M 247 at high temperatures
skos:prefLabel
High cycle fatigue of nickel-based superalloy MAR-M 247 at high temperatures High cycle fatigue of nickel-based superalloy MAR-M 247 at high temperatures
skos:notation
RIV/68081723:_____/14:00435146!RIV15-MPO-68081723
n3:aktivita
n15:P n15:I
n3:aktivity
I, P(EE2.3.20.0214), P(FR-TI4/030)
n3:dodaniDat
n5:2015
n3:domaciTvurceVysledku
n10:6154557 n10:6050956 n10:2958724
n3:druhVysledku
n17:D
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
19050
n3:idVysledku
RIV/68081723:_____/14:00435146
n3:jazykVysledku
n18:eng
n3:klicovaSlova
High cycle fatigue; Superalloy; MAR-M 247; High temperature; Fracture surface; S-N curve
n3:klicoveSlovo
n7:High%20cycle%20fatigue n7:Fracture%20surface n7:High%20temperature n7:Superalloy n7:MAR-M%20247 n7:S-N%20curve
n3:kontrolniKodProRIV
[F826724B54CB]
n3:mistoKonaniAkce
Verbania
n3:mistoVydani
Amsterdam
n3:nazevZdroje
XVII International Colloquium on Mechanical Fatigue of Metals (ICMFM17)
n3:obor
n20:JL
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:projekt
n14:EE2.3.20.0214 n14:FR-TI4%2F030
n3:rokUplatneniVysledku
n5:2014
n3:tvurceVysledku
Šmíd, Miroslav Kunz, Ludvík Hutař, Pavel Hrbáček, K.
n3:typAkce
n13:WRD
n3:zahajeniAkce
2014-06-25+02:00
s:issn
1877-7058
s:numberOfPages
4
n4:doi
10.1016/j.proeng.2014.06.273
n19:hasPublisher
Elsevier