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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F11%3A00367575%21RIV12-AV0-68081723
rdf:type
skos:Concept n4:Vysledek
dcterms:description
A comparative study of creep and microstructural properties of two model cast Ni-Cr-W-C alloys (Alloys A and B) resistant to high-temperature oxidation with different contents of Cr, W, Zr and Fe was performed. Uniaxial tensile creep tests were carried out at temperatures from 1023 to 1273 K and at the applied stresses ranged from 20 to 250 MPa. Creep tests were followed by microstructural and fractographic investigations. A mutual comparison between the creep characteristics of the alloys under comparable creep loading conditions shows that the alloy B with higher contents of tungsten and zirconium is more creep resistant as that of the Alloy A at lower temperatures. It is suggested that the alloy A and B earn their creep strength from the combination of solid solution hardening and precipitation hardening. However, it is difficult to quantify each contribution to the overall creep strength. Possible reason for the different consequence of strengthening effects is discussed. A comparative study of creep and microstructural properties of two model cast Ni-Cr-W-C alloys (Alloys A and B) resistant to high-temperature oxidation with different contents of Cr, W, Zr and Fe was performed. Uniaxial tensile creep tests were carried out at temperatures from 1023 to 1273 K and at the applied stresses ranged from 20 to 250 MPa. Creep tests were followed by microstructural and fractographic investigations. A mutual comparison between the creep characteristics of the alloys under comparable creep loading conditions shows that the alloy B with higher contents of tungsten and zirconium is more creep resistant as that of the Alloy A at lower temperatures. It is suggested that the alloy A and B earn their creep strength from the combination of solid solution hardening and precipitation hardening. However, it is difficult to quantify each contribution to the overall creep strength. Possible reason for the different consequence of strengthening effects is discussed.
dcterms:title
Creep behaviour and microstructure changes of model cast Ni-Cr-W-C alloys Creep behaviour and microstructure changes of model cast Ni-Cr-W-C alloys
skos:prefLabel
Creep behaviour and microstructure changes of model cast Ni-Cr-W-C alloys Creep behaviour and microstructure changes of model cast Ni-Cr-W-C alloys
skos:notation
RIV/68081723:_____/11:00367575!RIV12-AV0-68081723
n4:predkladatel
n5:ico%3A68081723
n3:aktivita
n11:Z
n3:aktivity
Z(AV0Z20410507)
n3:cisloPeriodika
-
n3:dodaniDat
n12:2012
n3:domaciTvurceVysledku
n9:7024819 n9:8093326 n9:3249514 n9:1102303
n3:druhVysledku
n15:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
192229
n3:idVysledku
RIV/68081723:_____/11:00367575
n3:jazykVysledku
n18:eng
n3:klicovaSlova
cast Ni based superalloy; creep properties; phase stability
n3:klicoveSlovo
n16:cast%20Ni%20based%20superalloy n16:phase%20stability n16:creep%20properties
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[A43594070BD6]
n3:nazevZdroje
Procedia Engineering
n3:obor
n17:JG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n12:2011
n3:svazekPeriodika
10
n3:tvurceVysledku
Sklenička, Václav Kuchařová, Květa Hrbáček, K. Kvapilová, Marie Svoboda, Milan
n3:zamer
n7:AV0Z20410507
s:issn
1877-7058
s:numberOfPages
6